Here is quick recipe for a sponge birthday cake. Watch out though, don't make the mistake our hosts made. They used two tablespoons of butter instead of two teaspoons. If you follow the along with this how to video, minus the tablespoon of butter, you are sure to make a delicious sponge cake. Use strawberries and cream to decorate. If the cake doesn't work out you can just eat the strawberries and creame.