Pork gyoza with soy dipping sauce

Name: Pork gyoza with soy dipping sauce
Prep time: 40 min
Cook time: 1 h
Total time: 1 h
Yield: 32 piece
Ingredients: 1 centimetre ginger, fresh root; 50 gram rice vinegar; 50 gram soy sauce; 1 spring onion; 1 teaspoon sesame oil; ¼ teaspoon chilli, dried, flake; 800 gram water; 100 gram cabbage; 3 centimetre ginger, fresh root; 2 garlic clove; 5 sprig chive, fresh; 3 spring onion; 300 gram pork mince; 1 pinch sea salt; 1 pinch white pepper, ground; 1 teaspoon sesame oil; 2 teaspoon soy sauce; 2 teaspoon rice vinegar; 2 teaspoon potato flour; 1 package gyoza wrapper; 2 tablespoon vegetable oil