Vegetable Dumplings

Name: Vegetable Dumplings
Ingredients: 3 1/2 cups all-purpose flour; 1 cup tepid water; 6 tablespoons vegetable oil (divided, plus extra if pan-frying dumplings); 2 teaspoons minced ginger; 1 medium onion (chopped); 2 cups mushrooms (chopped (shiitake or cremini)); 1 1/2 cups cabbage (finely shredded); 1 1/3 cups carrots (finely shredded); 1 cup garlic chives (or green onions, chopped); 1/2 teaspoon white pepper; 2 1/4 teaspoons sesame oil; 3 tablespoons dry sherry or dry sherry substitute; 1 1/2 tablespoons soy sauce; 3/4 teaspoon sugar; Salt (to taste)