Chinese Potstickers

Name: Chinese Potstickers
Ingredients: 200g ground pork (slightly fatty, not lean); 100g canned water chestnuts (or chopped spinach/cabbage); 1 teaspoon sea salt; 1 teaspoon fine sugar; 1/2 teaspoon ground black pepper; 2 teaspoons light soy sauce; 2 teaspoons sesame oil; 1 tablespoon Shaoxing Huatiao wine; 2 to 3 tablespoons of chopped scallions (spring onions); 25 to 30 store bought dumpling wrappers (the round kind, not the square wanton or spring roll wrappers); Plain flour to dust; 4 to 6 tablespoons vegetable oil (for 2 batches of cooking); 2/3 cups water (for 2 batches of cooking)