Materials to be prepared in advance include: 200g of chicken breast, 300g of vermicelli, onion, ginger, millet pepper and Flammulina velutipes. Specific practices are as follows:

1. Tear the chicken breast into filaments.

2. Add broth to the pot, add shredded chicken and millet spicy, add chicken essence, salt and white vinegar to taste, and boil into a slightly sour and spicy chicken soup.

3. Add vermicelli and boil.

4. Add Flammulina velutipes and boil.

5. Sprinkle with chopped green onion and serve.