Ingredients: appropriate amount of pig cavity bone, two small roots of Chinese yam, one piece of ginger, a small handful of Chinese wolfberry and appropriate amount of salt.

1, two yams, do not scrape the skin after washing, scrape the skin and cut into pieces before entering the soup to prevent oxidation and blackening;

2. Chop pig bones, put them in a cold water pot, and remove blood foam. This pot is relatively large and can be divided into two meals.

3. Cut ginger into thick slices and put it in a casserole;

4. Put a proper amount of pig bones into the pot and add a proper amount of hot water;

5. Sit the pot on the rice cooker, cover it, select the "soup making" program, set the time to 2.5 hours, and then adjust the time according to the taste; You can also use an ordinary saucepan or casserole with a small fire;

6. When there are about 40 minutes left, peel the yam and cut it into pieces;

7, into the bone soup, complete the remaining time;

8. put a handful of medlar in front of the pot, sprinkle salt according to taste, and take out the pot. That's it.