Cut the broccoli into small flowers and wash it twice. Wash fresh mushrooms, remove pedicels and cut into pieces. Chop ginger and garlic separately. Boil water in a pot, add a little salt and a few drops of oil, add broccoli and cook until soft. The cooked broccoli is served. Cook the mushrooms in a pot until they are soft, and take them out for later use. Put the base oil in the pot, add the ginger and garlic and stir-fry until fragrant. Add two spoonfuls of oyster sauce and stir-fry the oyster flavor. Stir-fry broccoli and mushrooms evenly over high heat, and add a little chicken essence. Broccoli and mushrooms are best cooked in advance, so it is easy to fry after cooking.