The materials that need to be prepared in advance are: 200 ml fresh milk, 2 eggs and 40 g sugar.

1. The first step is to separate the yolk and protein of the egg and keep the yolk.

2. Put the prepared sugar into the egg yolk and stir well.

3. Then boil the fresh milk.

4. Add the egg mixture and mix well.

5. Mix well before cooking.

6. After cooling, put it in the refrigerator for 6 hours, and then take it out when it's time, so it's done.