Rainbow cake

Tips: Make the best rainbow cake

We have compiled a few tips that will help you in making this wonderful, colourful cake.

Precise measurement for uniform colours

To impress with evenly and brightly coloured layers in your rainbow cake, accurately measure the batter for each colour. A digital kitchen scale can ensure each layer has an equal amount of batter, leading to consistent thickness and even baking. Choose quality gel food colourings for striking colours, and mix well to avoid streaks. Halfway through baking, rotate the baking tins to ensure even heat distribution and prevent over-browning. Once baked and cooled, trim the tops if needed to create flat surfaces for a beautifully stacked cake.

Get a smooth finish

Use a palette knife to smooth the edges by pushing any excess buttercream from the rim towards the centre, aiming for sharp edges. Chill the cake for another 10 minutes to set the frosting before adding the final decoration.

Storing leftovers

Store your rainbow cake in the fridge to keep it fresh for 4–5 days. To enjoy the full flavour and texture, let the cake reach room temperature before you serve it.

Try our recipe for a beautiful rainbow cake

Baking is fun, but baking a beautiful rainbow cake takes the fun to a whole new level. Colours spring like a rainbow from this showstopper of a cake, making it a perfect centrepiece for any social gathering that could use a touch of whimsy. Each layer of the cake is a joyous celebration in itself, with vibrant hues of blue, green, red, and yellow, all held together by a smooth cream cheese frosting. The finishing touch is an array of colourful candies, making our rainbow cake a delightful treat that captivates both children and adults alike.

We have so many recipes for celebrating all the special days in your life. Try our delicious rhubarb cake, an Austrian Sachertorte, or sweet éclairs.

Colourful cake layers

The cake features layers in all the colours of the rainbow, from deep blue to lush green, radiant red to sunny yellow, giving it a stunning look. This colourful assembly will surely mesmerise your guests with its splendour. Each bite offers a delightful experience as the spongy layers almost melt in your mouth.

Smooth vanilla-flavoured cream cheese frosting

This rainbow cake recipe combines cream cheese and butter to create a rich, spreadable frosting. Icing sugar contributes sweetness, and vanilla sugar deepens the flavour. When these ingredients are whipped together, you get a frosting that is perfect for layering and decorating your rainbow cake.

Decorated with sprinkles and sweet candy

To complete your rainbow cake, unleash your creativity with the decoration. Adorn the cake with a mix of sprinkles, colourful candies, and edible glitter to make it as beautiful as it is delicious. Aim for a decoration that not only invites but also promises bursts of colour and flavour with every bite. Ideal for birthdays, special occasions, or just to add some joy to any day.

Make it your own

Feel free to play around with the toppings and candy to find which ones fit your vision. Swap out coloured candy for chocolate chips or chopped nuts if you want to tone down the colours without sacrificing the sweet flavours. You can also experiment with the cream cheese frosting and add some lemon juice or almond extract. The lemon will add a citrusy freshness to the frosting, while the almond extract provides a nutty richness.

Even the colours in the rainbow cake can be changed to fit any occasion. Consider using pastel blue, orange, pink, or whatever colour you prefer. As long as you make sure to add different nuances of the same colour, the rainbow cake is bound to impress any guests.