Making extra crispy baked chicken wings is all about getting the skin on the wings really dry. when the chicken skin is really dry the chicken fat can do a better job of crisping up the skin as it renders out during the baking process. Three things that ensure your wings will be extra crispy. 1. Patting your wings dry. 2. Tossing your wings in baking powder or cornstarch before baking. 3. Baking at 250℉ for 30 minutes before cranking the heat up to 425℉.