Husband's birthday is soon, and I am making him a rainbow cake. So it has lots of layers and has white buttercream inbetween. Then I am going to cover it all with white buttercream, so it looks all white until you cut yourself a slice!
Love it :)
Yes, I know I left out indigo when I was doing the cake, but to get a good indigo colour was too hard, so I left it out.