1. Wash and chop small pieces of pork bones, put them in a pot, add water to wipe the noodles, boil a spoon of bleeding water to wipe them
2. Chop corn, peel and cut carrots, put in a casserole and add some hot water to boil
3. Put the pork bones in the water, add hot water to a boil, turn to a low heat, and boil for 2 hours
4. Add salt to taste before drinking
