1. Prepare the black-bone chicken (wash it in advance and put it in the refrigerator.)
2. Prepare the ingredients, red dates, wolfberry, ginger, green onions, and yam.
3. First pass the black-bone chicken over the water.
4. Change the water again, bring the fire to a boil, and skim the excess oil.
5. Then add the prepared ingredients.
6. Bring to a boil, then simmer on low heat for 2 hours.
1. When handling yam, try to wear gloves to prevent allergies.