Add the cabbage to a bowl with a pinch of salt and mix well. Let rest while you’re prepping the other ingredients, then squeeze out and drain as much of the extra water as possible.
In a bowl, mix 1 tbsp water with 1 tsp of cornstarch then add the pork. Mix until the pork becomes pasty.
Add the garlic, ginger, green onions, soy sauce, oyster sauce, toasted sesame oil, salt, white pepper, and squeezed and drained cabbage. Mix until well combined.
Scoop out about 1.5 tbsp of dumpling filling either directly into the pan and then cover with a dumpling wrapper.
If desired, whisk together 1/4 cup water with 1 tsp flour and 1 tsp cornstarch. Add directly to the pan, cover and steam for 4-5 mins. After the time is up, remove the lid and let the bottoms crisp up, 1-3 minutes.
When the bottoms are crispy (you can lift one up to see, serve, in the pan, topped with thinly slice green onions, dumpling sauce, and chili oil/crisp if desired. Enjoy!