Separate the napa cabbage leaves and blanch them in boiling water.
Finely chop pork, tofu, glass noodles, chives, and onion.
Add soy sauce, sesame oil, garlic, and pepper to the chopped ingredients and mix well.
Place the dumpling filling on a blanched napa cabbage leaf and wrap it in a dumpling shape.
Boil water in a steamer, place the dumplings inside, and steam for 10 minutes.