How to Make a Rainbow Cake – Sugarcrafters

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September 11 2017

How to Make a Rainbow Cake

No matter what time of year, colourful multi-layer Rainbow cakes are the perfect way to celebrate!

For this project we’ve used Red, Orange, Sunflower, Leaf Green, Peacock and Violet Culpitt Colour Splash colours. Follow on for instructions on how to make this wonderfully vibrant cake!


 1 - Prepare your favourite sponge cake mix and divide it evenly between the numbers of layers you wish to create. Place each mix into a separate bowl. Add a small amount of Colour Splash food concentrated colour to each bowl and mix evenly.

 Add colour and stir until you have your desired colour. The colour of the mixture will look very similar to the finished cake. Once happy with each colour, pour the mix evenly into separate cake tins and place into the oven. Bake according to recipe instructions.

 2 – Once out of the oven, cooled and removed from their tins, it’s time to construct your Rainbow Cake! Turn it into a Naked Rainbow cake by stacking your cake layers with a bit of buttercream in between the layers, but leaving the sides and top with little to no buttercream so you can show off the beautiful colour palette! Alternatively,  layer it with white buttercream, or cover it completely with white sugarpaste to reveal a special colourful surprise when the cake is cut into!


BAKING TIP: Want to ensure an even bake every time? Click here to take a look at our range of baking belts, it might just be the solution you were looking for!



DECORATING TIP: Feeling even more adventurous? Raise the level of amazement and awe by turning it into a Rainbow Piñata Cake! Simply cut a hole in the middle of the cake, fill it with your favourite colourful candies (we've got these too! [link]), cover the top with a slice or two of the pieces of cake layers you originally removed, and frost - your Rainbow Pinata Cake is sure to be a HIT!


COLOUR TIP: If in doubt of a colour’s strength and consistency, add small amounts at a time, mixing well in between. Hint: A toothpick is ideal for adding concentrated colours!