This recipe has been adapted from a number of different recipes.
Line a baking sheet with aluminum foil, grate ontop. Place the flour, cayenne pepper, garlic powder, baking powder, and salt into a resealable plastic bag, and shake to mix. Add the chicken wings, seal, and toss until well coated with the flour mixture. Place the wings onto the prepared baking sheet, and place into the refrigerator. Refrigerate at least 1 hour, the longer the better, even overnight.
Preheat oven to 425 degrees F (220 degrees C).
Remove wings from grate, and spray the grate with oil. Place the wings fleshy-side down. Bake for 25 minutes.
Flip the wings over (fleshy-side up), and bake for an additional 20 minutes.
Melt butter in a pot. Whisk in hot sauce until smooth. Toss the wings with the butter and hot-sauce mix and serve.