In a large bowl, mix pork, cabbage, green onions, garlic, ginger, light soy sauce, dark soy sauce, salt, white pepper, until well combined.
Place a wrapper in your palm or on a cutting board. Add about 1 tablespoon of filling in the center. Dip your finger in water and wet the edge of the wrapper. Fold in half and pinch the side edges to seal.
Heat a non-stick pan over medium heat and add 1–2 tablespoons of neutral oil. Arrange dumplings flat-side down without overcrowding. Cook until bottoms turn golden brown (about 2–3 minutes).
In a small bowl, mix water, cornstarch, and all purpose flour. Carefully add the cornstarch slurry to the pan. Immediately cover with a lid and steam for 5–6 minutes, or until the filling is cooked through.
Remove the lid and let remaining water evaporate. Cook another 1–2 minutes to re-crisp the bottoms.
Serve hot with your favorite dumpling sauce, and enjoy!