Preparation materials: 20g of shark's fin, 500g of ribs, 2 tbsp of cooking wine, appropriate amount of salt, onion 1 piece, ginger 1 piece, and a little pepper.

1, prepare the required shark fin and ribs, as shown in the following figure:

2. Then soak the shark fin in cold water for 24 hours in advance, as shown in the following figure:

3. Pork ribs need to be blanched to remove blood foam, as shown in the following figure:

4. Then put the blanched ribs into a bowl for later use, as shown in the following figure:

5. Then put the cooking wine, onion, ginger, ribs and shark's fin into the casserole, as shown in the following figure:

6. After the fire boils, simmer it on low heat 1 hour, and stew until the ribs are soft and rotten, then add the chopped green onion, as shown in the following figure:

7. Finally, put it in a bowl and serve it on the table. Add pepper and salt according to your personal taste, as shown in the following figure: