The materials that need to be prepared in advance are: 200g of milk, appropriate amount of egg yolk, appropriate amount of sugar, appropriate amount of corn starch and appropriate amount of water.

1. First, put the prepared eggs and a proper amount of sugar into the basin.

2. Then stir evenly with an egg beater and let stand for 5 minutes.

3. Put the prepared milk, water and corn starch into a basin and mix well.

4. Use medium heat, stir slowly and evenly, and turn off the fire after boiling.

5. After cooling, put it into the mold and put it in the refrigerator for 6 hours.

6. Take it out when it's time, and it's done.