Lion's Head Meatballs With Chinese Cabbage

Name: Lion's Head Meatballs With Chinese Cabbage
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: Chinese, Asian
Ingredients: 1 pound bok choy , Peking cabbage ( Napa cabbage or spinach leaves); 1 to 2 green onions (spring onions, scallions, minced); 1 teaspoon ginger (minced); 1 large egg; 1 pound pork (ground); 3/4 teaspoon salt; 1 teaspoon sugar (granulated); 2 1/2 teaspoons sherry (pale dry); 3 tablespoons light soy sauce (divided); 1/2 teaspoon Asian sesame oil; Optional: Black pepper (or white, to taste); 2 to 3 tablespoons cornstarch (or flour); 2 tablespoons vegetable oil; 1 1/2 cups chicken broth