mandu (korean dumplings)

Ingredients

• FILLING MIXTURE
• 1/2 pound zucchini, finely chopped
• 1/2 pound green cabbage, finely chopped
• 4 ounces mushrooms, finely chopped
• 1/2 medium onion, finely chopped
• 2 green onions, finely chopped
• 1/2 pound ground pork
• 1/4 pound ground beef
• 4 cloves garlic, minced
• 1/2 - inch ginger, minced
• 1 tablespoon soy sauce
• 1 tablespoon sesame oil
• 1 egg
• 1/4 teaspoon salt
• 1/8 teaspoon pepper
• DIPPING SAUCE
• 1 tablespoon soy sauce
• 1 teaspoon vinegar
• 1 tablespoon water
• 1/2 teaspoon sugar
• salt and pepper, to taste
• 1 package round dumpling wrappers