Combine the pork, cabbage, scallions, soy sauce, sesame oil, wine, ginger, garlic, and white pepper. Stir in one direction until the mixture looks cohesive.
Shape the Dumplings:
Place a teaspoon of filling in the center of each wrapper. Moisten the edge with water, fold the wrapper in half, and pleat or press firmly to seal.
Steam-Fry:
Heat the oil in a skillet over medium heat. Arrange the dumplings flat-side down and cook until the bottoms are golden, about 2 minutes.
Add the water, cover immediately, and steam for 8 to 10 minutes. Remove the lid and cook until the water evaporates and the bottoms crisp again.
Mix the dipping sauce and serve with the hot dumplings.
Notes
Squeeze excess moisture from the cabbage before mixing.
Keep wrappers covered with a damp towel while shaping.
Freeze extra uncooked dumplings in a single layer.