Seasoning: soy sauce, vinegar, monosodium glutamate, sesame oil and sugar.

1, add a proper amount of water to the pot, put two chicken legs, put onions, ginger and star anise in them, and put nothing else. After the fire boils, cover it and simmer for 8 minutes, then turn off the fire and simmer for 20 minutes. When the time comes, take it out, soak it in cold water and add ice water to make the skin more brittle.

2. After about 5 minutes, take out the chicken legs, dry the surface moisture, apply a layer of sesame oil, and apply evenly on both sides. Every piece of skin should be massaged in place, and two chicken legs should be cooked and put in the refrigerator to dry.

3, prepare a sharp kitchen knife, the knife should be steady and accurate, every knife should be accurate, cut the chicken bone marrow out, don't be afraid to bring some blood, move quickly and in one go.

4. Look at the smooth section. If the chicken can be made to this extent, it will taste delicious and tender.

5. Prepare a small bowl, pour in proper amount of soy sauce, vinegar, sesame oil, sugar, monosodium glutamate, onion, ginger and minced garlic, and stir together to make juice.