material

A pig bone (about 800-1000g), cut into small pieces, half a fresh yam, one corn and one carrot, peeled and cut into large pieces, one ginger, and a little salt and pepper.

method of work

1。 Wash the pig bones, boil them in a large pot of cold water for five minutes, and then rinse them carefully in cold water.

2。 Boil pork bones and ginger in a large pot of soup with eight bowls of cold water, and then turn to low heat to let the water boil without boiling. You must put enough water at one time, and don't add water in the middle.

3。 After one hour, add corn and carrots, continue to cook for one hour, then add yam for one hour, put salt and turn off the fire. A little longer simmering will make the bones crisp and the meat rotten, and the soup will be more delicious.

4。 After the soup is cool, put it in the refrigerator, remove the greasy or filter the impurities on it the next day, and eat it after heating. This step can make the soup fresher and healthier.