It was little W's 4th birthday last week. I always make his cake, but this year I'd hardly had time to think about it. I'd had to buy a Lightning McQueen cake for his party the day before as well. So when I saw a rainbow cake on Sew Recycled's blog, I thought it was perfect! It was so simple yet so effective. I called it a firework cake instead though as my son loves fireworks. Every drawing he does seems to have a firework in it!
I made 4 layers, although you can do as many as you like. I made each layer as a half mixture (so, four cakes of 4, 4, 4, 2). It's just a simple sponge with food colouring. When cooled I covered it in buttercream icing so you couldn't see the colours.
Little W loved it! It's a great surprise when you cut into it! If I'd had time I would have made more layers and also found some sort of firework candle. Anyway, it was extremely yummy! Let me know if you make one for November 5th!