Sui Mai

1 package  gyoza skins (won ton wrappers)

Filling
1 pound lean ground pork
2 tablespoons light soy sauce
2 tablespoons dry sherry
1 teaspoon freshly-grated ginger
1/2 teaspoon white pepper
1 tablespoon sesame oil
4 tablespoons chopped bamboo shoots or water chestnuts
1 tablespoon chopped green onion
1 egg white
1 tablespoon cornstarch
1 teaspoon salt
2 cloves garlic, minced
Pinch of granulated sugar

Mix all of the filling ingredients together very well. Place about 3/4 tablespoon of filling in the center of each noodle wrapper. Wet edges, pinch into a frilled flower shape at the top, and seal. Arrange in a steamer with the water in the lower part filled so that it comes within an inch of the steamer tray. Cover tightly, and steam them for 20 to 25 minutes over high heat. If using the stackable bamboo steamer trays, reverse them after 10 minutes. Transfer to plate with slotted spoon and serve.