Beach Cake Tutorial

This fabulous Beach Wedding Cake is covered in ivory sugarpaste and decorated with matching handmade and painted sugar-paste shells.

The bottom tier is a 10″ dark chocolate mud cake filled with dark chocolate ganache and the top tier is an 8″ white chocolate mud cake filled with white chocolate ganache.

Ingredients for 10” Dark Chocolate Mud Cake round
270g butter
270g dk choc
31g coffee
200ml water
155g SR
155g plain
60g cocoa
.6 tsp bicarb
590g caster
5 eggs
9 tsp oil
125ml buttermilk
1475g dark chocolate
740ml pure cream
1.475kg sugar-paste
Baking time
1 hr 50 mins
Method for Dark Chocolate Mud Cake click here

Ingredients for 8” White Chocolate Mud Cake round
240g butter
240g white choc
215ml water
120g SR
240g plain
315g caster
2.4 eggs
1.25 tsp vanilla
1025g white chocolate
350ml pure cream
1150g sugar-paste
Baking time
1 hr 20 mins

Method for White Chocolate Mud Cake click here

How to make ganache and cover your cake with it click here

I coloured all my sugarpaste at once using Wilton’s gel paste in Ivory.
1.475Kg for the bottom tier plus 1.150kg for top tier plus 500g for the shells

How to colour sugarpaste and use it to cover your cake click here 

How to assemble a 2 tiered cake click here 

I used Poly-Dowels from to support my cake this time and found them easy to use. They are easy to cut with scissors and more hygienic than the wooden ones, I think.

Sea Shells
Using 500g of the ivory sugarpaste, I decided to make a 50/50 mix of sugarpaste/gumpaste (read ‘Successful Molding’ below for other suggestions for mediums to use with molds). I used the recipe below for gumpaste but only used half the quantities to achieve a 50/50 mix.

I used 3 First Impressions Molds which I ordered from America from

S102 4 Shell Set
S188 Shell Set 6 (21398)
Clam Shell Press 2 pc.

I made 10 of each shell making a total of 130 shells.

Gumpaste Ingredients:

500 grams of sugarpaste (I use Bakels Pettinice, but any will do)
2 teaspoons of Cellogen (if you use CMC, Tylose or Gum Trag then only use 1 to 1.5 teaspoons)
1/3 teaspoon raw egg white
2 teaspoons Cream of Tartar
Use a little Crisco (here in Australia I use Copha which is a solid white vegetable oil) on your work surface and knead up your sugarpaste so its nice and soft.
Sprinkle the Cellogen, or alternative, over the work surface and knead it into the fondant.
Make a well in the mix and pour in the egg white, knead until mixed through, it may feel a little sticky, add more Crisco to the surface if you need to or some icing sugar to stop it sticking to your hands.
Sprinkle the Cream of Tartar on the work surface and knead into the mix until all incorporated.

(Thanks to Fran for this gumpaste recipe which I have adapted a little.)

Successful Molding by Alan Tetreault

Successful molding using silicone molds is all dependent on the medium you choose. Many decorators call me in frustration that they cannot get a good impression with a silicone mold using sugarpaste.  Generally, for larger or detailed molds, I recommend using at least a 50/50 mix of gumpaste and sugarpaste.  If the mold has a lot of details or undercuts (details that are cut out of the mold that you cannot see from the opening) I use 100% gumpaste.  On a large mold that is very detailed, I recommend adding Tylose to gumpaste to make a very firm and strong gumpaste.  The more detailed the mold, the firmer the gumpaste should be to achieve the best results.  Here are my suggestions:

It helps to use a small dot of shortening (Crisco) on our fingertips while pushing the sugarpaste or gumpaste into the mold.
1.  For small molds that you want to be able to cut through or eat, use only sugarpaste.  For each pound of sugarpaste, knead in about one cup of confectionery sugar or enough so that the fondant no longer sticks to your hands or the surface you are kneading on.  This will make molding easier and you can handle the finished product without it stretching out of shape.  This also works well on side designs, drapes and borders that you are molding with a silicone mold.  Adding a flavoring to the fondant (like orange, lemon, almond, peppermint, etc.) can be a nice finishing touch.  Especially since it is usually the children that try to eat the decorations!  Freezing the molded fondant for 5-15 minutes before removing helps keep the detail.
2. For larger figurines, flowers and borders like pearls and ropes, I recommend a mixture of 50% gumpaste and 50% fondant kneaded together.  This makes a mold that can still be cut through with a knife when you serve the cake but you may not want to eat the pieces.  Freezing the molded fondant for 5 -15 minutes before removing from the mold helps with removal and keeps the detail.
3.  For large molds or molds that have undercuts, I use all gumpaste.  Freeze 10 minutes before removing from mold.4.  For very large or detailed molds, I add 1-2 teaspoons of Tylose to one pound of gumpaste and knead it well. Allow it to rest overnight in the refrigerator in a sealed bag.  The next day, break off a piece and knead it well before using it to make a mold.  It will be very firm. Freeze 10-15 minutes before removing from the mold.
These shells were molded using 50/50 gumpaste/sugarpaste with no added confectioners sugar.  
I placed the filled mold in the freezer for 15 minutes then removed the shells from the mold and lightly dusted with non toxic Luster Dust in Spanish Moss (bronze metallic look) by Sunflower Sugar Art from I used a paintbrush to apply the dust.

This YouTube clip will give you a good idea how to use silicon molds even though it shows a baby mold and not a shell mold.

Leave the shells to dry for at least 24 hours before gluing them onto the cake with edible glue
Edible Glue
Also called Gum Glue
Add 2 tablespoons of warm water to a quarter teaspoon of Tylose Powder and allow the Tylose powder to melt. Don’t worry if at this stage the glue appears not to be blending. Put a lid on the container and leave it in the refrigerator overnight and in the
morning you will have a perfectly clear and ready to use glue.
The glue should be a dripping consistency. If it is too thick, just add a little more water and stir with a toothpick .
The edible glue should be stored in the refrigerator when not in use.
To apply the glue, use a good quality paintbrush and brush on to the area where you are going to be working. Leave until it begins to dry a little so that the area is just tacky to touch.
I left 16 assorted shells to place around the cake and sprinkled some raw caster sugar to look like sand.

I hope you like my cake and try making one yourself. Please share your efforts with me as I would love to see what you come up with.

Hand painted Wedding Cake Tutorial

Materials needed

7″ and 9″ round card for the base of each tier.
Doweling for support
Bottle Green satin ribbon – 6mm wide by 2m
Bottle Green satin ribbon – 2 inches wide by 2m
Black satin ribbon 1 inch wide by 2m
Diamontes buckle
13″ diameter cake board 4mm or 6mm thick
Hand painted Wedding Cake Tutorial
7” Dark Chocolate Mud Cake round

135g butter
135g dk choc
15g coffee
100ml water
75g SR
75g plain
30g cocoa
.3 tsp bicarb
295g caster
2.5 eggs
4.5 tsp oil
60ml buttermilk


735g dark chocolate
365ml pure cream


740g sugar-paste
9” Dark Chocolate Mud Cake round
220g butter
220g dk choc
25g coffee
160ml water
125g SR
125g plain
50g cocoa
.5 tsp bicarb
480g caster
4 eggs
7 tsp oil
100ml buttermilk


1200g dark chocolate
600ml pure cream


1.2kg sugar-paste
Click here to learn how to make dark chocolate mud cake and dark chocolate ganache.
Click here to learn how to torte and cover your cake with ganache.
Click here to learn how to cover your cake with sugar paste.

The pattern on the top tier of the cake was inspired by Crewel Embroidery and I looked at many examples on the net for inspiration.
Sample of Crewel Embroidered fabric

I wanted to use simplified elements of the original designs to create a new and unique black and white design.  
First of all I made a template for the top of the cake and the sides from some greaseproof paper…
….and then drew on my design with an HB pencil. 
I turned the paper around and traced the design on the back, again using an HB pencil (do not use a softer pencil as it will smudge onto your pure white icing and really make a mess). Pencils are made from graphite not lead and are non toxic.
I transfered my design onto the cake using a sharp HB pencil, securing the template with sticky tape around the sides and holding the top down lightly with my fingertips.

 I scanned my greaseproof paper templates for you to enlarge in your photocopier to fit the exact size of your cake. Once you have the outline transferred to the cake you can paint the motifs larger going over the lines a little covering up all the pencil marks as I have allowed for this by drawing the outlines smaller than i require for the finished work.
The bottom of each stem is covered by the green ribbon and the top of each stem I ended in an RI dot or two. Choose one of the central stems and line it up with the stem on the top of the cake.
I used Cake Art black edible colour on top but it was a little shiny so used Wilton on the sides and was happier with the finish. I used two round Taklon brushes a No 5/0 to outline and a No 4 to fill in.
If your colour is too thick, use a little Vodka to thin it down. I didn’t need to use any on this occasion.
Sorry that the video is so boring and has TV noise in the background but it is my first YouTube clip and I hope to improve. It also shows how slow I am at painting on cake. it took me 4 hours to complete! My brush was rubbish with hairs sticking out at right angles which I cut off making the brush almost impossible to use as there were only about 12 hairs left LOL! I have since replaced it.
Another tip! Use a brush with very long hairs as this helps with lines. Lay most of the brush on the cake and pull it along as this reduces hand wobble.
To make my design zing I wanted to add piped Royal Icing dots but decided to wait until the cake was fully assembled.
To assemble the cake I firstly placed the bottom tier on its base using some Royal Icing as glue. I then covered the bare edges of the board using a roll of sugar-paste which I unrolled like you would a carpet around the cake. Join at the back by first overlapping the sugar-paste and cutting with a knife through both layers, removing the excess and joining with a little Royal Icing.
Ali (my partner) marks the length of dowel to be cut while I take the picture.
I needed 4 dowels to support the top tier for this cake and one double height piece for the central dowel (this stops the top tier from sliding about while being transported).
Ali pushes in the first dowel
Ali carefully taps in the central dowel.
The central dowel cuts right through the middle of my design but it is easy to cover this up with a small black sugar-paste cut out, topped with a smaller white round piece of sugar-paste and crowned with a large dot of black royal icing.
Can you see the added dots!
I stuck the black ribbon onto the middle of the green ribbon using 12mm wide double sided tape but left the ends of the bow unstuck so that they could be hanging loosely from the bow as they would look too rigid otherwise.
I didn’t cut the ribbon in any way to form the bow. I just made it look good while holding it in my hand then slipped it through the diamonte buckle trying not to lose any of the nice shape I had.

Pink Tiffany Wedding Cake Tutorial

This cake was made up of two square tiers. The bottom tier was an 11″ dark chocolate mud cake with dark chocolate ganache and the top tier was a 9″ white chocolate mud cake with white chocolate ganache.

Ingredients for the 9″ square white chocolate mud cake

400g butter

400g white chocolate

350ml water
400 plain flour
200g SR flour
520g caster suger
4 eggs
2 tsp vanilla

White chocolate ganache

1700g white chocolate
600ml pure cream
1700g sugar-paste

Method for the 9″ square white chocolate mud cake 

(adapted from Planet Cake Cookbook)
Preheat oven to 180C. Grease tin and line the base and sides with a collar of baking paper that extends 2 cm above the top of the tin. Add baking strips (made from damp cloths wrapped in tin foil) around the outside of the cake tin. Put the butter and water in a saucepan over medium heat and stir until butter has melted. Turn off the heat, then add the chocolate and stir until it has melted and is well combined.
Sift the flours together in a bowl. Add the sugar, a pinch of salt and make a well in the centre.
Pour the chocolate mixture, egg and vanilla into the well then stir with a wooden spoon until well combined.
Pour into the cake tin, Bake for 1 hour 45 minutes or until the cake is golden brown and a skewer comes out clean when poked into the middle of the cake. Cover with foil halfway through if the cake is browning too quickly.
Once removed from the oven, use a pastry brush (or similar) to brush the top of the cake with boiled water to keep it moist and save it from cracking and forming crusty bits on top. Then cover with a clean tea cloth to reduce evaporation. Repeat the brushing with boiled water step two or three times at half hour intervals as the cake cools. Remove the baking strips once they can be handled or use oven gloves to remove them.

Let cake cool completely on a wire rack before taking the cake out of the tin.

Wrap the cake well in cling film (do not squash cake) and put in fridge till morning.
Method for white chocolate ganache

  1. Process chocolate till it resembles breadcrumbs and place in a large bowl
  2. Put the cream in a saucepan and bring to a rolling boil. Pour the cream over the chocolate and mix with a hand whisk until the ganache is smooth. (Do not use an electric whisk, as you will create too many air bubbles in the ganache.)
  3. Allow to cool completely and then leave to set overnight.

Ingredients for the 11” square dark chocolate mud cake 

440g butter
440g dk choc
50g coffee
320ml water
250g SR flour
250g plain
100g cocoa
1 tsp bicarb
960g caster
8 eggs
14 tsp oil
200ml buttermilk


2400g dark chocolate
1200ml pure cream


2.6kg sugar-paste
Method for the 11” square dark chocolate mud cake 
Preheat the oven to 160C. Grease the tin and line the base and sides with a collar that extends 2 cm above the top of the tin. Add baking strips (made from damp cloths wrapped in tin foil) around the outside of the cake tin.

Put the butter, chocolate, coffee and water in a saucepan and stir over low heat until melted, then remove from the heat.

Sift the flours, cocoa and bicarbonate of soda into a large bowl. Stir in the sugar and make a well in the centre. Add the combined egg, oil and buttermilk and the chocolate mixture, stirring with a large spoon until completely combined.

Pour the mixture into the tin and bake for 2 hours (for 11.5″cake) or until a skewer poked into the centre of the cake comes out clean, though it may be a little sticky.
Once removed from the oven, use a pastry brush (or similar) to brush the top of the cake with boiled water to keep it moist and save it from cracking and forming crusty bits on top. Then cover with a clean tea cloth to reduce evaporation. Repeat the brushing with boiled water step two or three times at half hour intervals as the cake cools.
Remove the baking strips once they can be handled or use oven gloves to remove them.

Let cake cool completely on a wire rack before taking the cake out of the tin.

Wrap the cake well in cling film (do not squash cake) and put in fridge till morning.
  1. Process chocolate till it resembles breadcrumbs and place in a large bowl
  2. Put the cream in a saucepan and bring to a rolling boil. Pour the cream over the chocolate and mix with a hand whisk until the ganache is smooth. (Do not use an electric whisk, as you will create too many air bubbles in the ganache.)
  3. Allow to cool completely and then leave to set overnight.

Making the lids

Let the cakes sit for a couple of hours to allow the icing to dry before you make the lids.
Brush the top of the cakes with a little water (or syrup) and run the brush around the top inch of the side of the cakes.
Knead 400g of the pink icing for the top box lid and 600g of pink for the the bottom box lid.
Once the dough is pliable, roll out each piece till they are at least 8 in larger thad the width of each box. Roll the icing over your rolling pin, lift it up and roll it over the cake. Smooth the top and sides with a flexi-scraper. Use a ruler to mark the edge of the lid on all 4 sides.
Trim the lid with a sharp knife.

Making the ribbon

Knead 500g of the white sugar-paste to a pliable dough and roll out to 16 x 40 cm rectangle. Cut into 4 long 4 cm wide strips. Trim one end of each ribbon into a point to help fit the ribbons together on top of the cake. Stick to the cake with water and trim excess ends with a knife.

Making the bow

Instructions on making the bow can be found on this video.

How to make Ganache and cover your cake with it

I love using ganache to cover cakes and wedding cakes as it tastes incredibly delicious and it’s so much easier to get nice, straight sides and edges compared to buttercream. Ganache is also wonderful to use under sugar-paste for the same reasons. Living as I do on the Gold Coast, Australia, ganache is the obvious choice as it withstands most of our really hot weather MUCH better than buttercream.
Chocolate and cream are the only two ingredients in ganache and are used in a 2:1 ratio for dark and semi-sweet chocolate and the 3:1 ratio for milk chocolate. The wedding cake in the picture above was covered in white chocolate ganache using the ratio 3:1 i.e. 3 parts white chocolate to 1 part cream.
In extremely warm weather it is sometimes necessary to increase the amount of chocolate in the mixture to prevent it melting.
To torte and cover a 9″ round cake with dark chocolate ganache
1.75 kg dark chocolate
600ml pure cream
To torte and cover a 9″ round cake with white chocolate ganache
1.3 kg
450ml pure cream
If you prefer a really soft filling for your cakes then just whip ½ cup cream and add 2 tbsp of the Ganache and whip a little more. This makes a delicious and easy chocolate mousse.
Step 1Make the Ganache: Heat the cream until it just starts to bubble, pour over chocolate (which you have blitzed in the food processor to coffee granules size) and let it sit for about a minute to melt. Use a hand whisk to blend it all together then set aside to cool. 
Your ganache at this point will be thin. You will have to pop it in the fridge until it thickens to a slightly thicker peanut butter consistency (don’t cover because you might get condensation). It would  usually set in the fridge in about an hour or two. If it sets too hard, just microwave it in 10 second intervals (keep mixing it whenever you take it out).
Proccess the chocolate to the size of coffee granules
Proccess the chocolate to the size of coffee granules
 Ganache nice and smooth

Ganache nice and smooth
Cutting cake into layers. Keep original layer of greaseproof paper on as long as possible to keep cake intact add a board or metal base to the top of the cake when cutting as you may accidentally put pressure on the top of the cake when cutting and dent your nice flat top.
Cut out a circle of non slip matting
This will stop your cake moving about on top of the turntable
Step 2Torte and level the 9″ cake: Place cake upside down on the cake board on a layer of ganache to act as a glue and to even out any irregularities. Add a mound of ganache in the middle of the board if your cake sunk or add a ring of ganache round the edge if you cake was high in the centre. If you are using the soft filling then pipe a ½” snake of Ganache around the outside edge of the cake to create a dam, pop the cake into the fridge for the dam to harden (about 5 min) remove from fridge, then fill with the filling. If using regular ganache to fill then apply with a cranked handled palette knife if you have one.
Top with the next layer of cake and repeat if needed. 
Step 3Crumb coat: (optional) Cover sides and top of cake quickly with a thin coat of ganache to stop crumbs getting into your final coat of ganache. This is useful especially if your cake is more crumbly than normal. Put in fridge for an hour or so to harden before continuing. 

Applying a quick crumb coat
A set square helps me get perpendicular sides
Crumb coat complete
Step 4Cover the top of the cake with Ganache: I like using the ‘double board’ method to get the top edge of the cake perfectly smooth. Top the cake with a 1/2” layer of Ganache, smooth it out then place a 9″ board on top which has been completely covered on both sides with cling film to keep the board clean and reusable and secured with sticky tape. Check with a small spirit level to see if it’s leveled, if not, gently press down around the cake until it is.
Step 5Cover the sides of the cake with Ganache: You want to always add more ganache than you need at the beginning because it is so much easier to just scrape off the excess and be done rather than to keep adding then scraping then adding then scraping…etc. As the 9” cake board is slightly larger than the cake (9” cake shrinks a little after cooling). I use the edge of the two boards as a guide to the thickness of the Ganache. Once you have added the Ganache along the sides, use a metal scraper or similar tool, to scrape the excess off a little at a time, layer by layer as you turn the turntable.
Step 6: Place the cake into the fridge for at least a ½ hour, remove, then carefully undo the cling and lift off the board then carefully peel the cling film from the top of the cake. You may need to smooth away the little imperfections or fill any air holes with a little bit of Ganache.
I went straight ahead and covered these 4 cakes with sugar-paste but I could have used a hot palette knife to smooth out any remaining imperfections if the cakes were not being covered,

Step 7: Let the cake sit overnight at room temperature for the Ganache to completely set. If you live in a hot climate like I do then best to put it in the fridge overnight. A wine fridge is best (as it is not so cold as your normal fridge in the kitchen) and has a built in humidifier. The cake will get quite hard and cold overnight and it is important that the cake gets back to room temp before covering with sugar-paste.( If you do not allow your cake to reach room temp, all the way through, the cake will sweat through your sugar-paste!) Before covering you can either brush or spray the cake with a little bit of water or vodka (it evaporates away anyways) or some type of syrup (apricot jam diluted with water). 

The above recipes make more ganache than is needed so that there is enough to allow for mistakes and for putting on extra and then scraping back off the excess. I also freeze any untouched ganache for my next cake.

Use these steps to make a gorgeous Pink Tiffany Wedding Cake



Butterfly Cookies Step by Step Tutorial

These cookies are iced using the ‘Outlining and Flooding’ technique which is simple to learn. The outline works as a dam or wall to hold the runny icing which you use to fill in the main parts of the cookie.

Buttery Sugar Cookies Recipe click here
Cookie Leveller click here

Royal Icing Recipe click here
Traditionally a thicker consistancy icing is used to outline the cookie shape and then a thinner one to fill in. I have come to prefer using the same icing to outline and flood my cookies because it saves time preparing and filling icing bags twice for each colour.
Outline your cookies first and leave at least 15 minutes before you flood the inside of the ‘dam’ (outline). If the outline is a dark colour as here, it is best to wait 24 hours so that the colours don’t bleed into each other.


To outline the cookie hold the bag at 45 degrees and position the tip on your cookie. Put enough pressure on the bag so that the icing comes out and you can start moving in the direction that you want your icing to go. Start lifting the pipping bag till it is a few centimetres above your cookie and the icing just falls in a continuous line onto the cookie below. Come back closer to the cookie at corners and when finishing also reduce or stop pressure on the bag to go more slowly or to stop.

Use a number 3,4 or 5 sized piping tip depending on the size of your cookie. Fill in one area at a time quickly zig zagging back and forth. Don’t worry if you haven’t filled in every spot: speed is more important at this point. To fill in these little missed bits just use your piping tip, toothpick or small paintbrush (used only for food), to push the icing into your missed bits.

To colour the wings by ‘melding’ several colours into each other then you must do it straight away. The base layer starts to dry quickly so you need to add your next colours as fast as possible.


Add two black lines of icing with a contracting colour in-between then drag through the lines with a cocktail stick or a pin. Have a look at some pictures of real butterflies to get an idea of what it is that you want to achieve.

The ‘eye’ of the butterfly is then made by layering a few coloured dots on top of each other, with the black as the final coloured dot.

Let the cookies dry for 24 hours before you package them.
Store in an airtight container in a cool dry place out of the sun (sunlight can fade the colours). The cookies can keep for up to 3 months but I prefer to use them up within a month.

I would like to thank Sweetopia for the original idea and for 3 images.

Happy Valentine’s Day Cookies Tutorial

Here is another treat for you to make for your loved one this Valentine’s day!

These cookies are not difficult to make and are decorated with Royal Icing and can be as simple or elaborate as you like.
I now use this gorgeous recipe for all my cookies. The cream cheese gives them a lovely flavour and texture and the consistency of the dough makes it easy to cut out shapes with cutters.
Buttery Sugar Cookies
250g softened butter
85g of softened cream cheese
150g (3/4 cup) caster sugar
1 egg
1 teaspoon vanilla extract
510g (3 cups) plain flour
Cream butter and cream cheese using K beater until light and fluffy. Add sugar egg & vanilla. Beat at a medium speed scraping down the side of the bowl often until creamy.
Reduce speed to low and add flour, beat very lightly until combined again scraping down the bowl.

Divide dough into 2 equal portions and wrap in plastic warp and refrigerate until firm (at least 2 hours). Or place in freezer for when you need them.The dough can last up to a week in a airtight container…they do go a little soft, but suppose to be like that…(not a crunchy biscuit)
Heat oven to 160 (fan). Sometimes I even lower the temp to 150, they don’t take long to cook, just enough so when you lightly touch them they do not make an indent in the cookie.

 Roll out dough on baking paper. 

Cut out cookies and bake for 7 to 10 mins until edges are very lightly browned. 

Click here to find out how to make and use my cookie dough leveller!

Remove from cooking sheets and cool completely on wire rack.
Outline and fill the cookies at the same time using RI (Royal Icing) with a number 2 piping nozzle and remember that RI takes 24 hours to set.

Royal Icing
Traditional royal icing is made with real egg white, however, because of the slight chance of salmonella poisoning, I now prefer to use dried egg white instead.
20g (3/4 oz) dried egg white
90ml (2.5fl oz) cold water
500g (1lb 2 0z) icing sugar

Mix egg white and water in a bowl until smooth.
Sieve the icing sugar into a grease free bowl.
Tip in the egg mixture and beat on the slowest speed for 5 mins until the icing stands up in peaks.

Planet Cake Royal Icing using real egg whites.
250-300g pure icing sugar, sifted
2-4 drops acetic acid (white vinegar)
1 egg white

Beat icing sugar, acetic acid and egg white with electric beater on medium-high speed for 4 minutes for ‘soft peak’. Add extra sugar if the icing is too soft.
Achieving the right consistency for Royal Icing can be difficult but practise makes perfect, so if icing is too thick or too thin just empty your piping bag and add more water/vinegar or icing sugar. You will soon work it out.

Place icing in airtight plastic bowl with a lid. Lay a piece of cling film directly on top of the icing and replace the lid.
DONT put the cookies in an airtight container until they are set (24 hours to set) need the air to help dry out..

Pipe on your designs once the cookies are set using a number 2 piping nozzle. If you would like to use my designs then click on the image above to enlarge and then copy the same or similar on your cookies. 
For the straight lines, in particular, touch the cookie with the nozzle at the beginning and end of line only, pulling your line of icing in the air. This way you get the straightest line possible. For the heart-shaped outlines you sort of hold the nozzle above your cookie and let the icing gently fall/glide into place. Do not drag the nozzle along the cookie surface at any time. Very few of my cookies are identical as I adapt my designs as I go. Feel free to experiment.

Suggested timeline for making the Valentine’s Day Cookies:
Day One – Baking
Day Two – Outlining, filling, and letting cookies dry overnight.
Day Three – Detail piping

These lovely little cookies last for ages, just keep on eating the odd one to make sure the rest are fresh, LOL! Remember to keep them out of strong sunlight so that the colours don’t fade.
Another little artwork to brighten up your day!