The materials that need to be prepared in advance are: 20 grams of shark's fin (dried), 500 grams of ribs, 2 tablespoons of cooking wine, appropriate amount of salt, onion 1 slice, ginger 1 slice and a little pepper.

1. Prepare all the main ingredients.

2. Soak shark fin in cold water for 24 hours. After soaking and tearing, simmer for 30 minutes, then put it in water for 30 minutes.

3, ribs drowning.

4. Wash the blanched ribs for later use.

5. Add cooking wine, onion, ginger, ribs and shark's fin to the casserole.

6. After the big fire boils, simmer with low fire 1 hour.

7, stew until the ribs are soft and rotten, add chopped green onion, pepper and salt.