1. Soak the ribs in water for about 20 minutes. Soak the kelp in advance, wash and cut into small pieces
2. Put a little cooking oil in the wok, stir fry the lower ribs and ginger slices until they are fragrant
3. Heat the soup pot, pour the fried pork ribs with ginger slices, add enough water, and drop 2 drops of white vinegar
4. Cover the pot, turn to low heat and simmer for about half an hour after the high heat is boiled, add the kelp and cook for 1 hour
5. Pour in the winter melon cubes and cook until the winter melon is soft and cooked to your liking. Season with salt and pepper.
