1. Prepare the ingredients and clean up the grass carp.
2. Prepare green onion and ginger slices.
3. Remove the fishy thread and teeth of the grass carp and cut into sections.
4. Add flour and coat well.
5. Fry in a frying pan until golden.
6. Heat up the pan in another pan, add oil, and saute the scallions and ginger slices until fragrant.
7. Add a can of beer, salt, light soy sauce, and a bowl of water.
8. Add a spoonful of sugar.
9. Add the fish cubes and simmer for 20 minutes.
