1. Wash the mung beans and beat the egg yolks
2. Put the mung beans in the pot and add enough water
3. Bring to a boil and simmer for about 40 minutes, until the mung beans are soft and rotten
4. Pour in the egg yolk
5. Boil again
Tips:Don't cook the egg yolk for a long time, it can be removed from the fire when it is boiled, and eat it when it is warm to dispel the heat.
