Separate the egg yolks and egg greens, and put the egg blues in a large bowl. The bowl should be large.

First beat the egg whites until foamy, then add 1/2 cup of sugar in batches. After each addition, beat vigorously and quickly until the egg whites in the bowl increase to 3-4 times the original volume and become

Got to be thick.

Add 1/4 cup of sugar to the egg yolks, mix well, and add milk.

Add the egg yolk solution to the egg whites in portions and mix well.

Add baking powder to flour, sift and put into a large bowl.

Add the egg whites to the flour and mix well until it becomes thick.

Grease a baking pan with oil, pour the solution, and bake in the oven at 180 degrees Celsius for 35-40 minutes, until a toothpick is inserted and nothing comes out of the toothpick.

Take it out and wait until it cools before spreading the cream.