1. Slice pork with skin and chop onion, ginger and garlic for later use.
2, the amount of hot oil in the pot (slightly more than the amount of cooking), pour the meat into the fire and stir fry until the meat is golden yellow.
3. Add onion, ginger and garlic and continue to stir fry until a large amount of oil is separated from the meat. Pour in soy sauce and stir well.
4. Add it to half a pot of water. When the fire boils, turn it down. Add 2 peppers and 2 star anises, pour 2-3 tablespoons vinegar, cover and stew for about 1 hour.
5. 15 Minutes before cooking, add a proper amount of salt and thirteen spices to continue stewing until the meat slices are soft and cooked, and the salt is delicious, then turn off the heat and cook.
6. After taking out the pot, put it in an open container to cool, and then put it in the refrigerator. After a night, the white grease will precipitate and solidify, sealing the meat slices below. You can take it with you when cooking daily, or you can choose to pick it with a spoon and stew it in the pot for a short time when the food is almost cooked to make it delicious.