Combine chicken with oyster sauce for marinade, cornstarch for marinade, and ground black pepper for marinade in a bowl. Mix well and marinate for 10 minutes.
1 lbs boneless chicken breast, 3 tablespoons oyster sauce, 2 teaspoons cornstarch, 1/4 teaspoon ground black pepper
Heat 3 tablespoons of cooking oil in a wok over medium-high heat. Sauté the marinated chicken for 3 minutes until lightly browned. Remove and set aside.
5 tablespoons cooking oil, 1 lbs boneless chicken breast
Add the remaining oil to the wok. Sauté the onion, celery, and the white parts of the green onion with the red and green bell peppers for 1 minute.
5 tablespoons cooking oil, 1 pieces onion, 1 stalk celery, 1 stalk green onion, 1 pieces red bell pepper, 1 pieces green bell pepper
Pour in the chicken broth and bring to a boil.
1 cup chicken broth
Add soy sauce, oyster sauce, and dark soy sauce. Stir to combine.
2 tablespoons soy sauce, 3 tablespoons oyster sauce, 2 tablespoons dark soy sauce
Season with garlic powder, sugar, and ground black pepper.
1 teaspoon garlic powder, 1 teaspoon sugar, 1/2 teaspoon ground black pepper
Make a slurry by mixing cornstarch for slurry with water for slurry. Add it to the pan along with sesame oil, then stir gently until the sauce thickens.
2 teaspoons cornstarch, 3 tablespoons water, 1 teaspoon sesame oil
Return the sautéed chicken and the green parts of the green onion to the pan. Toss until evenly coated and heated through.
1 lbs boneless chicken breast, 1 stalk green onion
Transfer to a serving plate. Serve hot with fried rice. Share and enjoy!