Duobao fish is rich in nutrition and tender in meat. Steamed turbot's practice is as follows: clean the turbot, remove scales and viscera, and marinate for 20 minutes. Add cooking wine and ginger slices to the pot, bring to a boil, and steam the turbot for 7 minutes. Stir-fry onion, ginger and garlic in another pot, add light soy sauce, dark soy sauce, oyster sauce and white sugar and stir-fry until fragrant. Pour into a plate and sprinkle with shredded onion. The Duobao fish made in this way is tender and delicious.