1. Chop pork belly, add cooking wine, soy sauce and sweet noodle sauce and mix well.
2. Wash the leeks, cut into pieces, and plate them.
3. Mix leek and meat stuffing together, add onion, ginger, oil, salt, pepper and monosodium glutamate, and mix well for later use.
4. Knead the dough evenly, slice it, knead it into strips, and cut it into agents.
5. Sprinkle flour and flatten it, roll it into thin skin, wrap it in meat, and stew for 10 minutes.
6. Put a little oil in the pot and fry the buns in the pot 1 min.
7. Add proper amount of flour and water, cover the pot and fry for 6 minutes on low heat.