2. You can prepare a chicken, cut it into small pieces, put it into boiling water at one time, put it into a big bowl, add some ginger, onion, garlic, salad oil, white sugar, old wine and soy sauce strips, stir for half an hour, then mix some raw flour evenly, cut the mushrooms into small pieces, put them into a big bowl filled with chicken, add water to the pressure cooker, put an iron shelf in the water, and put the bowl filled with chicken on the shelf.