1. Wash and chop dried trotters, wash and slice ginger, wash and cut onions, and peel garlic.

Second, wash the soybeans first and cook them in a pot, so as to remove the beany smell.

Third, add water to the pot to boil, add pig's trotters and cooking wine, cook the blood in the pig's trotters with fire, and fish it up for use.

Fourth, add oil to the pot. When the oil is hot, add ginger slices, garlic and onions to stir fry, and add pig's trotters to stir fry. Put it in a casserole, add water, soybeans and high fire to boil, and simmer for about 30 minutes until the soup turns white. Add salt, chicken essence and chopped green onion, sprinkle with a little white pepper and take out.