1. Buy the killed crucian carp, wash, add two teaspoons of pepper and white wine, marinate for 30 minutes
2. Marinated fish patted with a layer of flour
3. Pour oil in the pan and fry the fish on both sides
4. Fry until golden and remove
5. Stir-fry the onion, ginger and garlic in a pot with hot oil
6. Put in the fried fish, add sugar, vinegar, soy sauce, and cook
7. Add a spoonful of salt, pour the water over the fish, turn to a low heat and cover and simmer
8. About 20 minutes, the soup is all up and the heat can be turned off
