Filling (10 1/2 oz ground pork, 3 1/2 oz vegetable filling, 1 tablespoon grated ginger, 1 teaspoon salt, 1 tablespoon soy sauce, 1 teaspoon sugar, 3 tablespoons water, a suitable amount of cooking wine and white pepper) • Dumpling Wrappers (3 1/3 cups all-purpose flour (about 400 grams), 3/4 cup boiling water (about 180 ml), 1 1/3 tablespoons cold water (about 20 ml), 1 teaspoon salt)