Red velvet cake is a red coloured layer cake with cream cheese or ermine icing. The primary ingredients of red velvet cake are baking powder, butter, buttermilk, cocoa powder, eggs, flour, sugar, salt, vanilla extract, vinegar, and, in modern recipes, red food colouring.

A chocolate cake is a rich, sweet dessert made primarily with cocoa powder or melted chocolate, giving it its signature deep flavour and dark colour. It typically includes ingredients like flour, sugar, eggs, butter or oil, and baking powder or soda to help it rise.

Sponge cakes (or foam cakes) are made from whipped eggs, sugar, and flour. Traditional sponge cakes are leavened only with eggs. They rely primarily on trapped air in a protein matrix (generally beaten eggs) to provide leavening, sometimes with a bit of baking powder or other chemical leaven added. Egg-leavened sponge cakes are thought to…