(Makes 20–25 Dumplings)Preparation time: 1 hourCooking time: 10 Minutes Ingredients 225g plain flour 130–150ml hot water vegetable oil, for frying The Filling 50g rice vermicelli noodles a handful of coriander 1 spring onion a thumb-size piece of ginger 1 garlic clove 5 shiitake mushrooms, soaked and drained 200g Chinese chives or garlic shoots 5 pak choi leaves 1 leaf of Chinese leaf cabbage The Marinade 1 tablespoon light soy sauce ¼ teaspoon black pepper ¼…