You need to choose chestnuts that are large and have no bad spots. If there are bad parts, they must be cut off. You can also go to the supermarket to buy black-bone chicken. Wash it, put it in a pot of water and boil it once. Then take it out of the pressure cooker and add water. Add the black-bone chicken.

When the water covers the black-bone chicken, put the pressure cooker into steam and simmer for 10 minutes. Then switch to a casserole or an ordinary soup pot, put the original soup and black-bone chicken into the country, add some water, add cooking wine, ginger slices, green onions, star anise, chestnuts, boil over high heat for 10 minutes, then reduce to low heat and simmer slowly.

You can add an appropriate amount of wolfberry and lotus seeds and simmer over low heat for about 1.5 to 2 hours. Remove the star anise, green onions and ginger slices. Season appropriately according to personal taste. Add salt, MSG and chicken essence. I recommend not adding them. If you feel a little greasy, you can add some green vegetables. Note: black-bone chicken

It is best not to buy the frozen ones that are freshly killed.