Required materials: ribs, onions, onions.

Specific practice: ribs with ginger, cold water. Stir-fry onions in oil until fragrant, then add onions and stir-fry onions until a little burnt. Pick up onions and onions, ribs and sugar, and fry them with onions. Mix soy sauce, oyster sauce and water to make a sauce, and put it in a stew for one hour with the fried onion and sauce.