Wacky rainbow cake

A fun way to get the little ones involved in baking.

Less than 1 hour

Serves 8

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  • 1 box (500g) PnP vanilla cake mix + ingredients listed on box
  • 5 different colours food colouring
  • 1½ cups (375g) butter
  • 3 cups (390g) icing sugar, sifted
  • 1 tsp (5ml) vanilla essence


  1. Preheat oven to 180°C.
  2. Line a 22cm springform cake tin with baking paper and cover sides with non-stick spray.
  3. Prepare cake mix according to packet instructions.
  4. Slowly whisk in cake mix.
  5. Divide batter between 5 bowls and tint each bowl with a different food colouring – 3-4 drops per bowl should be enough.
  6. Pour batters into cake tin and give a very gentle swirl with a kebab skewer to create a pattern. Avoid overstirring or the colours will turn brown.
  7. Bake for 40-45 minutes or until a skewer inserted into the centre of the cake comes out clean. (Note, baking times will differ from brand to brand.) Cool on a wire rack.
  8. Whisk butter, icing sugar and vanilla together with an electric whisk until light and fluffy.
  9. Spread white icing evenly over the cake.
  10. Slice and serve.


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