I know you’ve all seen them. The tall cake, covered in white buttercream icing with the rainbow surprise waiting on the inside.
That cake is big enough to feed a huge birthday party and while I wanted to make something similar for Phoenix’s birthday last year, I knew the leftovers from such a big cake wouldn’t be eaten, so I opted for a smaller, unique cake.
I’d seen this technique before but with only two colours so had the idea to try it as a multi-coloured rainbow for a smaller cake, and it worked beautifully. For the cake mix I used two gluten free vanilla cake’s and substituted the butter for coconut oil.
After combining all the ingredients I separated the mixture into five bowls and added gel food colouring. I know, I know, there are healthier options but I wanted the vibrant colours you can only get from gel. And it’s a once-a-year birthday cake.
I then put a table spoon into each bowl and that was my measuring spoon. I lined up all the bowls and into my greased cake tin I put one dollop of each colour, one after the other, always into the centre of the pan. As the mixture got heavier it forced the previous colours out. Looking like:
Then because it was Phoenix’s birthday, you have to let them lick the bowls….
After the cake was baked and cooled I made up the buttercream icing that came with the packet mix but used coconut yoghurt instead of butter. I slathered that onto the cake then covered it in pink fondant (it’s Phoenix’s favourite colour), a painstakingly cut out number 3 and some edible glitter, cos’ at this point it what it really needs is more sugar…
But the end result was a beautifully moist one pan rainbow cake and one happy little girl. Less dishes = happy Mum too!