Rainbow Cake Recipe

🌈 Rainbow Cake Hack 🌈 An easy, but cute little rainbow cake! The best bit is you don’t have to worry about being neat with the icing as it’s completely covered 🙌🏻

The wonderful people at @rainbowtrustcc asked if I could share a Rainbow Bake. Rainbow Trust Children’s Charity supports families who have a child with a life-threatening or terminal illness.

Rainbow Trust would love people to join in and take part in the Royal Rainbow Bake by baking and fundraising to celebrate the coronation of King Charles III while raising money for seriously ill children and their families🌈

Print Recipe

Rainbow Cake

Servings: 8 people

Ingredients

For the cake:

• 175 g baking butter, at room temperature
• 175 g caster sugar
• 3 eggs
• 250 g self raising flour
• 2-3 tbsp milk

For the buttercream & decorations:

• 250 g butter
• 500 g icing sugar
• blue food colouring
• 2 4 pack of Smarties
• sprinkles

Instructions

• Pre-heat the oven to 180C/350F/Gas 4. Grease an 18cm/7in round cake tin, line the base with greaseproof paper and grease the paper.
• Cream the butter and sugar together in a bowl until pale and fluffy. Beat in the eggs, one at a time, beating the mixture well between each one and adding a tablespoon of the flour with the last egg to prevent the mixture curdling.
• Sift the flour and gently fold in, with enough milk to give a mixture that falls slowly from the spoon. zest.
•  Spoon the mixture into the prepared tin and lightly level the top. Bake on the middle shelf of the oven for 30-40 minutes, or until golden-brown on top and a skewer inserted into the centre comes out clean.
• Remove from the oven and set aside to cool in the tin for 10 minutes, then turn it out on to a wire rack and leave to cool completely.
• Cream together the butter and icing sugar, add a little milk if needed. Add in a little blue food colouring and mix.
• Slice the cake in half and sandwich the two halves together with the buttercream. Place the cake on the side. Cover with buttercream.
• Add the smarties in a rainbow shape. Add sprinkles on top and then leave to set.