1. Prepare ingredients: lamb tripe 1 block, mutton 1 kg, 5 cotton threads, appropriate amount of salt, a little onion, ginger and garlic, and white pepper 1 tablespoon.
2. Wash the lamb belly thoroughly and divide it into small pieces.
3. Add salt, pepper and soy sauce to the mutton stuffing for one hour.
4. sew the lamb belly into a pocket shape with a needle and add the mutton.
5. Add onion, ginger and garlic into the pot, add cold water and a little salt, and cook for 1.5 hours.