Black Pepper Chicken

Ingredients for 4 servings
Chicken breast or thigh - 350 grams
Bell pepper 1
Onion 1
Garlic 2 cloves
Cooking oil 2 tbsp

For marinade
Cornstarch - 2 tsp
Sesame oil -1 tsp
Shao Xing cooking wine - 2 tsp
Regular soy sauce - 1 tbsp
Black pepper - half tsp

For Sauce Mix
Light soy sauce 1 tbsp
Oyster sauce 3 tbsp
Cornstarch 1 tsp
Shao Xing wine 1 tbsp
Water 3 tbsp
Sesame oil 2 tsp
Black pepper 1 tsp or adjust to taste