Red velvet cake is simply a sponge cake with red food colouring and a cream cheese frosting. It was one of the funniest critics on Masterchef, I couldn’t stop laughing at Gordon and Joe’s comments. The key tip I can give you about making a fluffy light sponge cake is that you need to beat as much air into the eggs as you can. The more air the lighter the cake. If you are new at baking sponge cakes, don’t despair on the first try. Make it again and again and you will master the art of making sponge cakes.