Ingredients: ribs, two or three onions, ginger, cooking wine, salt.

1. Wash the pig bones, put them in a cold water pot, turn off the fire after boiling and foaming, pour out the water in the pot, and wash the pig bones with warm water.

2. After washing the pot, re-inject fresh water, add the cleaned bones, add two or three slices of ginger, a onion knot and a proper amount of cooking wine. Add enough water at a time, which is 4-5 cm higher than pig bones, because less water will evaporate during cooking.

3, the fire to boil, change to a small fire to keep a slightly boiling state, if there is floating foam.

4, cook until the soup is less, the soup color is white, the pig bones are crisp and rotten, then add salt to taste, turn off the fire.

5. Filter the broken bones of onion and ginger with a strainer.

6. put it in a fresh-keeping box, let it cool, put it in the refrigerator, and refrigerate it for two or three days, and you can eat it in a week or two.