These cakes are not made with solid butter or vegetable shortening. Some of these cakes are made with melted butter or vegetable oil. The common way is to mix the eggs and sugar, and then add flour. These cakes are often much taller, lighter and often spongier than creamed fat cakes. Angelfood cake and chiffon cakes are egg foam cakes. Most grocery stores with bakeries sell angelfood cakes. Angelfood cakes are made by beating egg whites with sugar. This traps a lot of tiny air bubbles. The eggs and sugar are mixed with other ingredients. Then, the cake is baked.