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Unicorn rainbow cake

With this colourful design and magical details, this cake brings a smile to everyone’s face. This cheerful cake with rainbow colours adds a touch of magic to any occasion. Bake this delicious unicorn cake with the colourful pastel Sugar Paste an find more unicorn themed decorations in our assortment.

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3 hour preparing
35 min. cooking
6+ people

What you need to make your unicorn rainbow cake:


  • 150 g FunCakes Mix for Sponge Cake Deluxe
  • 125 g FunCakes Mix for Buttercream
  • 225 g FunCakes Mix voor Royal Icing
  • 450 g FunCakes Covering Paste Baby Pink
  • 250 g FunCakes Covering Paste White
  • FunCakes Rolfondant Multipack Pastel Colours 5 x 100g
  • FuCakes Food Colour Gel Pink
  • FunCakes Food Colour Gel Orange
  • FunCakes Flavour Paste Raspberry
  • FunCakes Sugar Paste Black
  • FunCakes Sparkle Dust Ginger Gold
  • FunCakes Bake Release Spray
  • FunCakes Magic Roll Out Powder
  • Sugarflair Rejuvenator Spirit Alcohol
  • 170 ml water
  • 150g unsalted butter
  • 3 eggs (approx. 150 g)


  • Wilton Recipe Right Non-Stick Cooling Grid- 40x25cm
  • Wilton Extra Deep Round Baking Cake Pan Ø 17,5 x 10 cm
  • Wilton Cake Leveler 25 cm
  • PME Modelling Tools Cutting Wheels Set 2
  • PME Modelling Tools Flower/Leaf
  • FMM Wolken Uitsteker Set/5
  • Dekofee Profi Brush 1
  • ScrapCooking Sugarpaste Fondant Extruder
  • Crisco Shortening
  • Colouring page Unicorn
  • Slipcase
  • Plastic foil
  • Satay skewer
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Recipe of Unicorn rainbow cake


Stick a colouring sheet into the slipcase and cut out the parts of the unicorn from the other colouring sheets. Lightly coat the back of the parts with crisco, otherwise they will stick to the Sugar Paste while cutting.

TIP! You make the unicorn 2 days earlier so it can dry properly.


Roll out the white Sugar Paste and place the unicorn on top. Cut out neatly with the cutting wheel. Work away any unevenness using the PME Modelling Tool Flower/Petal.


Now place this part on the colouring sheet in the insert sleeve. Go on and cut out the legs/hoofs and stick them on the unicorn. Make the mane from small rolls of pastel Sugar Paste and glue them to the head with a little bit of glue. Make an eye using black and white Sugar Paste and knead a small piece of black Sugar Paste smoothly with a big blob of Crisco. Make the eyelashes using the extruder and the disc with the smallest holes (if you don’t use crisco you won’t get the Sugar Paste out of the extruder!).


Make from the Glitter Powder Ginger Gold and Sugarflair Rejuvenator Spirit Alcohol paint and paint the hooves and the horn gold (let it air-dry for 2 days. Don’t cover it or it won’t dry)


Colour a piece of 100 g white sugar paste light orange with the Food Colour Gel. Make strings of the pastel roll Sugar Paste set and the orange Sugar Paste of equal thickness and form a rainbow out of this. Stick the strands together with a little bit of edible glue.


Knead some white Sugar Paste smoothly and roll it out to a thickness of 4 to 5 mm and put a sheet of cling film over it. Now cut out clouds of various sizes; the plastic will make them a little round. Wipe away any frayed edges with your finger. Set about 3 of them aside and let them dry completely until they are hard (do this 2 days in advance together with the unicorn, then they will be thoroughly dry).


Preheat the oven to 180°C (convection oven 160°C) and grease the baking pan with baking spray.


Prepare 150 g FunCakes Mix for Sponge Cake Deluxe as indicated on the package. Colour the batter pink with the colouring gel. Spoon the batter into the greased baking tin and bake the cake for about 30-35 minutes until done. After baking, let the cake cool down by using a cooling grid.


Prepare the 125 g FunCakes Mix Buttercream as indicated on the packaging. Flavour the buttercream with the FunCakes Flavour Paste Raspberry.


Cut the cake with the cake leveler twice and fill and spread the raspberry buttercream thinly all around. Leave to set in the fridge.


Knead the pink FunCakes Covering Paste smoothly and line the cake with it. Roll out the Sugar Paste to a thickness of 2 mm on a work surface dusted with Magic Roll Out Powder. Cut away the excess sugar paste with a sharp knife. Using some edible glue, carefully stick the rainbow against the front of the cake and finish further with clouds.


Stick a skewer into the cake and stick the unicorn against it with some buttercream. Finish decorating the cake with some clouds.

Just a little while before you can enjoy your cakes. Don't forget to share your creation: #funcakesbyme

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