Recipe | Rainbow sponge layer cake with white buttercream icing

This rainbow sponge layer cake looks good before you slice it, but wait til you see inside!

I’ve wanted to make a rainbow layer sponge cake for ages. My birthday gave me a reason to make the effort, and it was a trial run for the one I want to make my son later in the year. I was really pleased with how it turned out.

The recipe is just basic sponge cake mix. The difficulty is in all the dividing out, colouring, etc. This certainly isn’t low on the washing up: you’ll probably use most of your bowls. But I think the finished product is worth the effort.

Ingredients (serves 10 – 12 or more or less, depending on how big you cut your slices!)

Continue reading for the rest of the recipe and more pics!

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