Don’t skip the cooking spray. Spraying the wings with cooking spray and allowing them that additional 5 minutes cooking time is what crisps up your wings.
Add sauce in the last 5 minutes. If you like your sauce caramelized on your wings, you can add the sauce in the last 5 minutes of cooking.
Coat in seasonings before cooking. If you aren’t using a sauce, you can coat your chicken in your favorite seasonings for a flavorfully crisp wing.