Dumpling Soup With Bacon and Snow Peas

Name: Dumpling Soup With Bacon and Snow Peas
Ingredients: 4 slices thick-cut bacon, cut into 1/2-inch pieces; 2 tablespoons minced peeled ginger; 1 bunch scallions, chopped; Kosher salt; 1 teaspoon sugar; 4 cups low-sodium chicken broth; 2 tablespoons cornstarch; 2 tablespoons sesame oil; Freshly ground pepper; 4 ounces snow peas, trimmed and cut into 1-inch pieces; 2 plum tomatoes, cut into 1-inch pieces; 1 bunch watercress, tough stems trimmed, cut into 2-inch pieces; 1 pound frozen Asian-style dumplings or pot stickers