Shrimp Dumplings

Name: Shrimp Dumplings
Ingredients: ¼ cup black vinegar; 2 Tbsp. low-sodium soy sauce; 1 1 piece ginger, peeled, cut into matchsticks; 1 red chile, seeds removed, finely chopped, or 1 tsp. chili oil; ½ lb. large shell-on shrimp, peeled, deveined, coarsely chopped; ¼ cup thinly sliced scallion greens (from about 4 scallions); 1 2 piece ginger, peeled, finely grated; 1 tsp. potato starch; 1 tsp. sugar; 1 tsp. toasted sesame oil; ½ tsp. kosher salt; Pinch of ground white pepper; 30 round dumpling wrappers