Purple Potstickers

Name: Purple Potstickers
Ingredients: For Filling:; 1 small red cabbage (or half a large); 2 tablespoons kosher salt; 4 boneless, skinless chicken breasts; 3 scallions; 1 tablespoon sriracha sauce; 1 tablespoon sesame oil; 1 tablespoon rice vinegar; 3 garlic cloves, finely minced and smashed; 1/4 cup loosely packed cilantro; 3 tablespoons cornstarch; For Dough:; 2 cups all-purpose unbleached flour; 1/2 - 3/4 cup water; cornstarch, for dusting; olive oil, for frying; For Dipping Sauce (optional):; 1/4 cup balsamic vinegar; 1 teaspoon dark brown sugar; 1 tablespoon honey; 1-2 tablespoons water, to taste; 1/2 teaspoon red pepper flakes; salt/black pepper, to taste