Unicorn Cake 

Posted on May 11, 2017 in Cakes

There is a magical new cake trend in town that is almost too good to believe….

Based on the adorable beast, unicorn cakes are the latest sweet treats to pop up on the table at birthday parties.

There isn’t anything more fun than rainbows and unicorns, is there? Forget naked cakes, smash cakes and other chocolate overloaded cakes. The latest cake trend is a far more magical creation, filled with sunshine, colour and fairy dust.

This magical cake is a real showstopper, made with four layers of coloured sponges to create a rainbow cake, covered in buttercream and decorated to make a magical unicorn. The best part about it is that you could totally replicate this at home without paying an arm and a leg for it at a fancy bakery. 


Unicorn Cake
Serves 18
This colorful unicorn-inspired layer cake is the definition of cute—perfect for a birthday party or for anyone who’s just super into the current unicorn craze. This cake is fantastically wow-worthy but does take some time and loving dedication to construct.
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Prep Time
1 hr
Cook Time
1 hr
Prep Time
1 hr
Cook Time
1 hr
4638 calories
706 g
261 g
181 g
62 g
66 g
1244 g
3799 g
461 g
2 g
104 g
Nutrition Facts
Serving Size
Amount Per Serving
Calories 4638
Calories from Fat 1622
% Daily Value *
Total Fat 181g
Saturated Fat 66g
Trans Fat 2g
Polyunsaturated Fat 36g
Monounsaturated Fat 68g
Cholesterol 261mg
Sodium 3799mg
Total Carbohydrates 706g
Dietary Fiber 9g
Sugars 461g
Protein 62g
Vitamin A
Vitamin C
* Percent Daily Values are based on a 2,000 calorie diet. Your Daily Values may be higher or lower depending on your calorie needs.
  1. Ingredients
For the sponge cakes
  1. 600g butter
  2. 600g caster sugar
  3. 3 tsp vanilla paste
  4. 12 medium eggs
  5. 600g self raising flour
  6. 2 tsp baking powder
For the buttercream
  1. 500g soft unsalted butter
  2. 1kg icing sugar
  3. 2 tsp vanilla paste
  4. Food colouring of your choice
For the horn and ears
  1. 500g ready to roll icing
  2. pink food colouring to tint
  3. Edible gold lustre spray
  4. edible glitter
  5. Additional 500g buttercream in various pastel colours of your choice
  6. Black ready to roll icing
  7. Skewer
  1. 8” round cake tins lined with baking paper
  2. 12” gold base drum in gold
  3. Large plastic piping bag
  4. Large open star nozzle
  5. Small open star nozzle
  1. Method
Method for the sponge cakes
  1. Set oven to 180 °C.
  2. Place the butter, sugar into your mixing bowl and mix until all combined, then turn up the speed to high and beat until the mixture is very pale, soft and fluffy. (Around 8 mins)
  3. Add the beaten egg and vanilla a bit at a time.
  4. Add the flour a quarter at a time, mixing gently on slow until flour has mixed in. Try not to over mix.
  5. Divide the sponge mix equally into 4 bowls, each bowl will be approx 600g each and colour with rainbow shades.I used pink, blue, yellow and green. I use americolor food colouring to colour my batter. You will only need a small pea size. It goes a long way. Place in your tins, if you only have one or two tins you can do this in stages. Each layer cake should take 20-25 mins depending on your oven, Check each layer after 20 mins. The cakes should be a light golden brown on the top and springy to touch.
  6. Turn out of the tin onto a cooling rack and allow to cool. Once cooled, trim the cake of each later away to give you flat layers of cake.
To make the buttercream
  1. Beat the butter and vanilla until soft and pale. Beat in the icing sugar until the buttercream is pale light and fluffy.
  2. Set aside 1kg of buttercream for the cake layering and filling.
  3. Colour the rest using a few different colours. To achieve the two tone effect, fill half the piping bag with one colour and fill the other half with a different colour.
To make the horn and ears
  1. Colour 200g of the fondant by kneading in some yellow food colouring. Roll out a tapered rope of the fondant. Twist the tapered rope around the wooden skewer until you reach the top. Next, you can paint or spray your unicorn's horn gold! Of course, you can opt for another color like silver, pink or even a vibrant rainbow stripe.
For the ears
  1. To make the ears, first roll out some white and pastel-tinted fondant ( I did pale pink). Cut two large ears using large rose petal cutters from the white fondant. Then cut two smaller inner ears from the pastel-colored fondant.
  2. Pinch the bottoms together and add a couple of cocktail sticks into the bottom of each ear. Leave to set for a few hours.
For the eyes
  1. For the eyes, roll out two thin ropes of black fondant. Then roll out three smaller ropes to attach to make lashes. Set aside to firm up a little before adding to your cake.
To layer, crumb coat and cover the cake
  1. Stick the bottom cake layer onto the 8” round cake board with a little buttercream and make it central.
  2. Spread a layer of buttercream over the first layer, add the second sponge, and repeat with all 4 layers.
  3. Using a palette knife, spread buttercream all around the sides of the cake, go all around filling in the gaps and smoothing over. Place in the fridge for 30mins to chill.
  4. Next, spread another layer of buttercream over the top, and then using a side scraper sweep around the side of the cake using a firm pressure and smooth off the excess and make as flat as you can.
  5. Stick the horn onto the top of the cake.
  6. Place the ears either side.
  7. Pipe on the mane detail with coloured buttercream to give the multi rainbow tone effect. Start piping each swirl against the cake doing circles starting from the middle then piping around covering over the top, sides and down the back of the cake.
  8. To finish, add the eyes and add some sprinkles and glitter.
  1. All ingredients need to be at room temperature
Forever Baking . . . https://www.foreverbaking.co.uk/

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