Preheat your oven to 400°F. Place a wire cooling rack inside a large rimmed baking sheet. Lightly spray the wire rack with cooking oil to prevent sticking.
In a shallow bowl, whisk together the flour, cornstarch, and all the seasonings (garlic powder through cayenne) and the 2 tbsp of Parmesan. In a separate bowl, beat the two eggs.
Bread the ChickenPat the chicken pieces dry with a paper towel first.Dip each piece into the egg wash, then into the seasoned flour.Use your hands to firmly press the flour mixture into the chicken. You want a thick, visible coating of spices on every piece. Arrange the chicken on the wire rack, leaving space between each piece. Give the tops of the wings a thorough misting with the cooking oil spray.
Bake for 18–22 minutes. Rotate the baking sheet halfway through if your oven has hot spots. The wings are done when they are golden brown and reach an internal temperature of 165°F. While the wings are baking, whisk together the melted butter, minced garlic, Parmesan, and fresh parsley in a large bowl. As soon as the wings come out of the oven, toss them in the sauce while they are piping hot so the cheese melts slightly and sticks to the crust.