Pork and Vegetable Dumplings

Name: Pork and Vegetable Dumplings
Ingredients: 3 Tablespoons light soy sauce; 2 Tablespoons black or rice vinegar; 1/2 Teaspoon toasted sesame oil; 1 Teaspoon warm water; 1/4 Teaspoon sugar; 1 Teaspoon minced red chiles; 1 Teaspoon minced scallions; 3 Cups minced Napa cabbage; 1 Teaspoon salt; 1/2 Pound ground pork; 8 shiitake mushrooms, dried, reconstituted, stemmed, and minced; 3 scallions, minced; 1 Tablespoon minced fresh ginger; 2 cloves garlic, minced; 1 Tablespoon light soy sauce; 1 Teaspoon toasted sesame oil; 1 Tablespoon cornstarch, plus more for the baking sheet; 1/8 Teaspoon ground white pepper; 30 thin, round dumpling wrappers; 1/4 Cup canola oil; 3/4-1 cup water