1. Wash the yam, peel and cut into sections for later use.
2. Wash half of the chicken and drain.
3. Bring water to boil in a pot, add green onions, ginger, cooking wine, add chicken and cook.
4. Take out the coolness.
5. Make a cold pot under the chicken slices.
6. Put the chicken head, chicken feet, chicken neck, chicken bones into chicken broth. Bring to a boil on high heat, and low heat for 20 minutes.
7. Put down the yam.
8. Bring to a boil over high heat, stop at medium heat until the yam is cooked, add salt and chicken essence.
Tips:1. It should not take too long to cook the white chicken, but the chicken bones under the slice should be boiled for more time. The soup produced in this way has a strong taste and better nutrition.
