soak kelp, steam it for half an hour, take it out and soak it in clear water for 4 hours. After soaking, cut it into cubes. Wash the ribs, boil them in a boiling water pot, take them out and soak them in warm water. Put the ribs, onion slices, ginger slices and yellow wine in the pot, first boil them with high fire, then boil them with medium fire, and then pour in kelp pieces and cook them together.