Chicken Stir Fry

chicken mushroom stir-fry ingredients:
Chicken breast: 1
Salt: 1/8 tsp
White pepper powder: 1/8 tsp
Regular soy sauce: 2 tsp
Water: 1 tbsp
Corn starch: 1/2 tsp
Oil: 1 tbsp
Chinese vinegar: 1/4 tsp
Garlic: 2 cloves
Dried chili: 2
Fermented soy beans: 1 tbsp
Vegetables: green pepper, mushroom
Starch slurry:
Salt: 1/8 tsp
Dark soy sauce: 1/8 tsp
Corn starch: 1/2 tsp
Water: 1/4 cup