1. Ingredients: 1 tube bone, half a yam, 1 corn, 6 red dates, 2 Codonopsis pilosula, 1 small green onion, and half a ginger slice.

2. Prepare all the materials first.

3. Add cold water to the pot, put the tube bones in, and then add two small slices of ginger. Wait until the meat turns white (1 to 2 minutes), pick up the tube bones, and wash them with cold water.

4. Put the ingredients: tube bones, corn, ginger slices, Codonopsis pilosula, salt and water into the casserole.

5. Add yam and red dates half an hour before the soup is made, and chopped green onion at the end of the soup.