1. White kidney beans are soaked half a day in advance and fully soaked. Chop garlic, cut onion into chopped green onion and slice ginger.
2. Chop the trotters, soak them in water for a while and wash them.
3. Add water to the pot, add 4 pieces of fragrant leaves, 2 pieces of ginger and 1 spoon of white wine, and boil. Blanch the pig's trotters for 5 minutes, pick them up and rinse them off.
4. Put the pig's trotters into the casserole and add water until it is full. After the fire boils, add 2 slices of ginger and simmer slowly. Stew until the soup turns slightly white, then pour in kidney beans and add boiling water to continue stewing. After the trotters are soft and rotten (about 2.5 hours), add salt to taste and turn off the heat.
5. Half a spoonful of spicy oil, 2 spoons of vinegar, 1 spoon of soy sauce, a little sugar, minced garlic and cooked sesame seeds.
6. Sprinkle chopped green onion before serving. The steps are very detailed, you can try!