2. First, chop the chicken or pig bones into pieces, not too small. Chinese yam, carrot and corn are cut into sections, and the materials are washed.
3. First, put the shredded bamboo chicken or pork bones and red beans into the pot, put 4/7 of the water in the pot, that is, a little more than half, then boil it on high fire and stew it on low fire for 30 minutes, so as to make the pork bones or chicken more delicious and the soup more nutritious.
4.30 minutes later, put the corn, carrots, red dates and medlar into the pot together, then boil it with high fire, and continue to simmer with low fire after boiling.
5. Cook for about half an hour, add yam and cook for about 40 minutes.