Cantonese Style Pork and Shrimp Dumplings

INGREDIENTS

• 1/4 pound ground pork
• 1 cup chopped watercress
• 1/2 (8 ounce) can water chestnuts, drained and chopped
• 1/4 cup chopped green onions
• 1 tablespoon oyster sauce
• 1 1/2 tablespoons sesame oil
• 1 teaspoon minced garlic
• 1 teaspoon soy sauce
• 1/8 teaspoon ground white pepper
• 1/8 teaspoon salt
• 1 (16 ounce) package round dumpling skins
• 1 pound peeled and deveined medium shrimp