INGREDIENTS 1/4 c. low-sodium soy sauce 2 tbsp. rice wine vinegar 4 tsp. packed brown sugar 1 tbsp. cornstarch 2 tbsp. vegetable oil, divided Kosher salt Freshly ground black pepper 1 lb. flank steak, thinly sliced against the grain 1 red bell pepper, thinly sliced 1 green bell pepper, thinly sliced 3 cloves garlic, minced 1 […]
