Ginger Chicken Stir-Fry (Gai Pad King) ไก่ผัดขิง

Name: Ginger Chicken Stir-Fry (Gai Pad King) ไก่ผัดขิง
Cuisine: Asian, Chinese
Ingredients: 350g chicken thigh or breast, boneless, skinless; 4 tsp soy sauce, divided; 15g dried cloud ear mushroom (aka black fungus); 2 Tbsp chicken stock or water; 1 Tbsp oyster sauce; 1 Tbsp tao jiew; A dash black soy sauce or dark soy sauce (optional, for colour); 1 tsp sugar; 1 tsp toasted sesame oil; ¼ tsp ground white pepper; 4-5 cloves garlic; Thai chilies (optional); 3-inch section ginger, peeled and finely julienned; ½ medium onion, cut into strips; ½ small red bell pepper, julienned; 2 green onions, chopped