1. Preparation materials: one egg and appropriate amount of warm water.

2. ? Separate the egg white and yolk with a separator and put them into two bowls respectively.

3. Beat the yolk with an egg beater.

4. ? Slowly pour warm water into the broken egg yolk and stir well.

5. Gently skim off the foam with a spoon.

6. Boil the pot, cover the bowl with a lid or a plate, and steam on low heat for 10 minutes.

References:

Baidu encyclopedia-egg yolk soup