2. Accessories: 2 slices of sour plum, sour plum juice 1 tablespoon.

3. Wash the perch, round it but don't cut it, rub it with salt and wash it with water.

4. Prepare sour plum and sour plum juice.

5. Drum the sour plum into the sour plum sauce and discard the sour plum pit.

6. Put the perch in a dish, add the sour plum sauce and spread evenly.

7. Boil the water and put the eel in.

8. Steam on medium fire 15 minutes, and turn off the fire.