Auntie Mei's Jiao Zi: Best Homemade Chinese Dumplings!

Ingredients

• 2 cups (250g) all-purpose flour, plus more for dusting
• 1 cup (240ml) warm water
• Pinch of salt
• 1 pound (450g) ground pork
• 1 medium head of Napa cabbage, finely chopped (about 4 cups/225g)
• 1 tablespoon salt
• 2 green onions, finely chopped
• 1 inch piece of ginger, peeled and minced
• 2 cloves garlic, minced
• 2 tablespoons soy sauce
• 1 tablespoon sesame oil
• 1 teaspoon sugar
• 1/4 teaspoon ground white pepper
• 2 tablespoons vegetable oil (for pan-frying)
• Water (for boiling/steaming)