2. Steamed fish practice: Scales, gills and internal organs of perch are removed, washed and cut into flower knives. Rub some salt and cooking wine on the fish, and marinate the onion and ginger in the fish mouth for an hour. Shred onion, ginger and red pepper, and slice garlic. 2 tablespoons of soy sauce, sugar 1 spoon, a few drops of sesame oil, and appropriate amount of water, and mix into sauce for later use. Steam the salted fish in a steamer for about 10 minute.