Stir-Fried Green Pepper with Pork Slivers

Name: Stir-Fried Green Pepper with Pork Slivers (Qing Jiao Rou Si 青椒肉絲)
Cuisine: Chinese
Ingredients: 1 tsp light soy sauce; 3 tbsp cooking oil; 1 tbsp egg white or cold water; Salt; 1 tsp sweet fermented sauce; ½ tsp potato flour; 100 g lean pork; A few slivers of red pepper for colour (optional); ½ tsp Shaoxing wine; ¼ tsp light soy sauce; 1 green pepper