How to make fish head tofu hotpot?

First, fry the fish head. The method is: wash the fish head, dig it out from the mouth of the fish, heat it in a wok, add a little oil and burn it to 80%, first add pepper and stir-fry until fragrant, then add chopped green onion, garlic slices and ginger slices to stir-fry all the seasonings, then stir-fry the fish head (after the fish head must be fried until the soup is milky white), then add water to the fish head, boil it, pour it into the hot pot and add tofu. As the saying goes: a thousand rolls of tofu, ten thousand rolls of fish. If you are not in a hurry to eat, it is good to cook for a while. The longer the time, the thicker and whiter the soup. Put a little salt when you eat. If you pay attention to putting monosodium glutamate, turn off the fire before putting it. In case of high temperature, monosodium glutamate will produce harmful components to human body.