1. Sponge cake: It is a kind of foam cake. Its main body is a network structure formed by combining the foam produced by eggs and sugar and flour. Because the internal structure of sponge cake has many round holes, similar to a sponge, it is called sponge cake. Sponge cake is divided into whole egg sponge cake and divided egg sponge cake. Whole egg sponge cake is made by beating whole eggs and adding flour; when making divided egg sponge cake, the egg white and egg yolk must be separated and beaten separately. It is then mixed with flour to make it. 2. Chiffon Cake: It is a relatively common basic cake, and it is also a cake that is very popular among Western pastry baking enthusiasts. Birthday cakes usually use majestic cake as the base. The chiffon cake is very similar to a sponge cake with separated eggs. The difference is the proportion of ingredients. Novices can also add baking powder and tartar powder, so that the cake will be very soft.

? The main varieties of chiffon cakes include: chiffon rolls, thousand layer cakes, imperial concubine cakes, tiger skin cakes, etc.