1. After buying sheep bones, the first thing to do is to cut off the meat on the bones and leave a thin layer.

2. soak sheep bones in cold water and blood in meat. After soaking, boil the sheep bones in boiling water, mainly to get rid of the dirty things on your body.

3. Put the cooked sheep bones into the pressure cooker, then add onion ginger, cooking wine, soy sauce, pepper, sugar and cinnamon, add some salt to taste, and cook for about half an hour. Add a little chopped green onion when the pot is boiling.