1. Stun the fish first, insert a knife from the back, fillet the fish from head to tail, clean out the internal organs, remove the middle bone, clean it, and cut the fish with flower knife on both sides.

2. Put the fish into a basin, add onions, ginger, salt, chicken powder, beer, etc. and marinate for about an hour.

3. Prepare the charcoal for the oven. Put the charcoal into the oven, light it and burn it for a while to let the temperature in the oven rise. Then put a layer of charcoal at home and you can bake.

4. Add the fish to the tongs, then put it on the oven and bake it for about 7-10 minutes. It should be cooked. You can sprinkle some barbecue ingredients when baking.