1. Kill the mandarin fish, remove viscera, gills and scales, spread the whole body with salt, sprinkle some pepper, and put ginger slices in the viscera to remove fishy smell;

2. Put a spoon under the fish and put it in a steamer for about 10 minutes until the fish is fully cooked;

3. Take a spoon and pour out the water from the steamed fish.

4. Spread the onion on the fish, pour the steamed soy sauce, heat the cooking oil, and pour it on the onion to make it smell like onion!