How to stir-fry chicken breast as follows:

1. Wash the onions and cut them into small pieces for later use.

2. Wash the green peppers and cut them into small pieces; cut the millet peppers into rings.

3. Clean the chicken breast and cut it into small dices. It is easy to taste and convenient to eat one bite at a time.

4. Add appropriate amount of salt, cornstarch, egg white, black pepper, cooking wine and oyster sauce to the chicken breast, mix well and marinate for 10 minutes.

5. Heat the cold oil in the pan, pour in the green and red peppers and onion slices, add an appropriate amount of salt, vinegar and sugar, stir-fry evenly over high heat.

6. Pour in the marinated chicken breast, stir-fry evenly, and stir-fry until the chicken breast turns white.

7. Add an appropriate amount of dark soy sauce, continue to stir-fry over high heat and stir-fry evenly. Add an appropriate amount of chicken essence, stir-fry evenly, then remove from the pot and serve on a plate.