Is to cook food in a waterproof way. Here, taking the egg cake as an example, the method of waterproof stewing is explained:

1. Prepare ingredients: salt 10g, chicken essence 5g.

2. Egg 1, water 100ml, onion 10g.

3. Beat the eggs into a bowl, add chopped green onion, salt and chicken essence, add water and stir well.

4. Add water to the pot, put the eggs in the pot, cover the pot and stew.