In a large mixing bowl, combine ground pork, chopped chives, soy sauce, sesame oil, garlic, white pepper, and egg. Mix well until everything is fully incorporated.
Cover the mixture and let it rest for at least 30 minutes to allow the flavors to meld together.
On a clean surface, knead the dough for about 5 minutes until it becomes smooth and elastic.
Divide the dough into small balls, about the size of a walnut.
Roll out each ball of dough into a thin circle, about 1/8 inch thick.
Place a tablespoon of the pork filling in the center of each dough circle.
Fold the dough over the filling to form a half-moon shape and press the edges together to seal the dumpling.
Bring a medium saucepan of water to a boil and gently add the dumplings.
Cook the dumplings for 15 minutes, or until they float to the surface.
Remove the dumplings from the water with a slotted spoon and place them on a plate or serving dish.
Serve hot with your favorite dipping sauce.