2. Kill the fish into small pieces, wash, control the moisture, add a little salt, starch and cooking wine and marinate for a while. Fry the fish pieces in a pot over medium heat until three layers are cooked, then put them in a casserole and take them out for later use. Add shredded ginger, shredded garlic and pepper to the fried fish oil, stir-fry until fragrant, add a little water, soy sauce and a little salt, cover the pot and stew for 5 minutes, and sprinkle with chopped green onion.