1. Ingredients: appropriate amount of leeks, appropriate amount of flour, appropriate amount of vermicelli, appropriate amount of eggs, appropriate amount of black pepper, appropriate amount of oyster sauce, appropriate amount of salt, appropriate amount of chicken essence, appropriate amount of oil.
2. Stir-fry the minced meat first, then add the egg liquid and stir-fry until cooked and let cool. Add chopped leeks and soaked vermicelli. Add appropriate amount of salt, chicken essence, oyster sauce and black pepper, and stir evenly.
3. Add flour and appropriate amount of water in a casserole to form a smooth dough and let it rest for 20 minutes.
4. Cut into two balls, shape into long strips, cut into small pieces, and sprinkle dry flour evenly.
5. After pressing with the palm of your hand, roll it into a round shape with a rolling pin, thick in the middle and thin on the edge.
6. Add the leek filling and pinch both sides to form a vegetable box.
7. Heat the oil in the pot and fry the leek box.
8. Fry until both sides of the vegetable box are golden brown, then serve.