Nestled under this category are cakes such as angel food cake, genoise, dacquoise or jelly roll-style cakes. Eggs are the name of the game with fluffy foam or sponge cakes.

Usually, air is beaten into the eggs (sometimes just the whites, sometimes the whole egg), and then they are folded into the batter. During the baking process, this creates steam in the batter, causing the cakes to rise.