Raw materials: appropriate amount of pig bone.

1. First prepare a proper amount of pig bones, and then clean them with clear water.

2, hot pot water, put the pig bones in, cook 10 minutes, then remove and wash.

3. Put the pig bones in a large pot of water, bring them to a boil with high fire, and turn to medium fire to continue cooking.

4. Cook until there is about a bowl of white soup left, and turn off the fire for use (cook for about 8 hours).