1. Wash the hairtail and cut into pieces about 8 cm long
2. Add a little salt, black pepper, white rice wine, white rice vinegar and marinate for about 10 minutes to remove the fishy
3. Put it on the kitchen paper to absorb excess water
4. Dip a thin layer of flour on both sides
5. Put a little oil in the pan, add the fish cubes when it is 50% hot
6. Fry until golden brown on both sides, serve and set aside
7. Slice green onion, slice ginger
8. Put it in a frying pan and sauté
9. Add appropriate amount of water, pour in tomato sauce, sugar, light soy sauce
10. Stir with a spatula until it boils
11. Pour in the previously fried fish pieces
12. Let the fish fillet fully immerse in the sweet and sour sauce and wait until the sauce is almost dried
13. The sweet and sour octopus is ready~ Let's start~
