¾ pound ground pork or other meat
1 cup minced cabbage
2 tablespoons minced ginger
1 tablespoons minced garlic
6 scallions, the white and green parts separated, both minced
½ cup plus 2 tablespoons good soy sauce
48 dumpling wrappers
1 egg, lightly beaten in a bowl
4 tablespoons peanut oil or vegetable oil, more or less
¼ cup rice vinegar or white vinegar