How does the earth fish make wonton soup base?

The method of wonton soup base with earth fish is as follows:

Preparation materials: earth fish, salt, vinegar, monosodium glutamate, onion, ginger, cooking wine and coriander.

First, wash the fish on the earth and remove the scales from the internal organs.

Second, cut into two sections and put them in a casserole.

Third, the onion is cut into sections, and the ginger is chopped and put into the casserole.

Fourth, add enough water and add cooking wine and salt.

5. Boil it with a big fire.

6. Then simmer for 40 minutes.

7. Finally, add vinegar, monosodium glutamate and coriander to remove the fish.