First cut the black-bone chicken into pieces, and you can decide the size;

Heat the pot, add oil, add ginger slices, stir-fry, add chicken, and stir-fry for 2 to 3 minutes. Add some vinegar, so that the chicken will rot more easily and the meat will be very tender. Add an appropriate amount of cold water. If it is stewed in a casserole, put it in the casserole and simmer it on high heat for 15 minutes. After the water boils, switch to low heat and stew it. If you like it more rotten. Yes, just simmer for a longer time and add the mushrooms 15 minutes before starting the pot, because the mushrooms will cook very quickly. If you add them too early, they will be too rotten.