Foam cakes are

cake Cake is a flour confection made from flour, sugar, and other ingredients, and is usually baked. In their oldest forms, cakes were modifications of bread, but cakes now cover a wide range of preparations that can be simple or elaborate, ...

s with very little (if any)

fat In nutrition science, nutrition, biology, and chemistry, fat usually means any ester of fatty acids, or a mixture of such chemical compound, compounds, most commonly those that occur in living beings or in food. The term often refers spec ...

ty material such as butter, oil or shortening. They are leavened primarily by the air that is beaten into the egg whites that they contain. They differ from

butter cake A butter cake is a cake in which one of the main ingredients is butter. Butter cake is baked with basic ingredients: butter, sugar, eggs, flour, and leavening agents such as baking powder or baking soda. It is considered one of the quintessent ...

s, which contain shortening, and

baking powder Baking powder is a dry chemical leavening agent, a mixture of a carbonate or bicarbonate and a weak acid. The base and acid are prevented from reacting prematurely by the inclusion of a buffer such as cornstarch. Baking powder is used to increase ...

baking soda Sodium bicarbonate (IUPAC name: sodium hydrogencarbonate), commonly known as baking soda or bicarbonate of soda, is a chemical compound with the formula NaHCO3. It is a salt composed of a sodium cation ( Na+) and a bicarbonate anion ( HCO3−) ...

for leavening purposes. Foam cakes are typically airy, light and spongy. After it is cooked, the cake and the pan are flipped down on a sheet pan with parchment paper in order for them to cool down at the same rate. Examples of foam cakes are

angel food cake Angel food cake, or angel cake, is a type of sponge cake made with egg whites, flour, and sugar. A whipping agent, such as cream of tartar, is commonly added. It differs from other cakes because it uses no butter. Its aerated texture comes from w ...

meringue Meringue (, ; ) is a type of dessert or candy, often associated with Swiss, French, Polish and Italian cuisines, traditionally made from whipped egg whites and sugar, and occasionally an acidic ingredient such as lemon, vinegar, or cream of ...

genoise A génoise (, , ; usually spelled genoise in English), also known as Genoese cake or Genovese cake, is an Italian sponge cake named after the city of Genoa and associated with Italian and French cuisine. Instead of using chemical leavening, ...

, and

chiffon cake A chiffon cake is a very light cake made with vegetable oil, eggs, sugar, flour, baking powder, and flavorings. Being made with vegetable oil, instead of a traditional solid fat such as butter or shortening, it is easier to beat air into the batt ...

. Foam, sponge or unshortened cakes are distinguished by their large proportion of foamed eggs and/or egg whites to a small proportion of sugar and wheat flour.

References

Cakes {{dessert-stub