1. Step 1: Rinse hairtail with clear water to remove beautiful silver scales. Step 2: Cut off the fins on the side of hairtail with a spatula. Then cut open the belly of hairtail, remove internal organs, cut off the mouth of hairtail to prevent scratching hands, and clean the gills. Step 3: Rinse with clear water. 4. Slice garlic, step 6, add oil in the pot, add onion, ginger, garlic, aniseed and pepper until fragrant, step 7, add a proper amount of soy sauce, step 8, add clear water after fragrant, the amount of clear water depends on the size of the pot and the number of hairtail, only after hairtail is put in the pot, it is good that hairtail can not be seen, and step 9, after water is boiled, it is good to add fresh water. Turn to low heat and simmer slowly. Step 11, stew for about 1 minutes. Step 12, pour in a proper amount of soy sauce to taste and color again, a little salt and sugar to taste. Turn off the heat and prepare for cooking.