How to make a rainbow layer cake

How to make a rainbow layer cake

Having children is the perfect excuse to let loose with all your baking dreams. From Women’s Weekly birthday cakes to Hungry Caterpillar inspired creations I love nothing better than an excuse to get out the food colouring.  For my baby boy’s first birthday I decided to take this one step further and attempt a rainbow layer cake for the first time. Food colouring overload!

Inside the rainbow layer cake

You’ve probably seen rainbow layer cakes on Instagram and Pinterest. Plain on the outside, cut them open and there’s a rainbow inside.  It’s a pretty spectacular “reveal” and sure to delight both big and little kids.


  • 250g butter, softened
  • 2 tsps vanilla extract
  • 2 cups caster sugar
  • 6 eggs
  • 4 cups plain flour, sifted
  • 1 tsp baking powder,
  • 1/2 tsp bicarbonate soda
  • 1 cup milk
  • Food colouring (the gel is better than the liquid).
  • 125g of butter, softened
  • 1½ cups of icing sugar
  • 2 tbs of milk
Read the whole recipe on Gourmet Chick