You don't need to cook first. If you cook the meat first, it will dry. Wash the pork belly and cut it into small pieces. Then put a little oil in the pot and stir-fry with sugar until the meat turns red. Add star anise, cinnamon, onion, ginger, garlic and other seasonings and stir-fry until fragrant. Put cooking wine, soy sauce, etc., it is best to add enough water at one time. Cook over low heat until the soup tastes better with less oil.