Why Does a Layer Cake Have Puffed-Up Tops?

About one kilogram of puff pastry eggs cakes Actually, there are only 18 to 20 layers; neither too many nor too few is ideal for maintaining the cake's texture;Too many or too few layers would result in a completely different taste upon consumption. Each layer of puff pastry needs to be fried individually, then the cake maker must apply fresh cream one layer at a time by hand, with no machine assistance, which requires much time. Each cake takes an average of 3 to 4 hours to complete. After applying the cream, the cake maker uses a red-hot copper iron to caramelize sugar and applies it on top before cooling in the refrigerator. The flavors of the puff pastry range from about 8 to 9 kinds, including vanilla, sweet wine grapes dried,bananas,chocolate, green tea,cheese, strawberries,and coffee as well as a blend of three berry flavors.,coffee and three-flavor berries, among others.