In a large glass bowl, combine drumettes, buttermilk, 1 teaspoon salt, and 1⁄2 teaspoon pepper. Cover, and refrigerate for
3 hours.
In a medium bowl, combine flour, cornmeal, garlic powder, onion powder, remaining 1 1⁄2 teaspoons salt, and remaining 1 teaspoon pepper.
In a large heavy-bottomed Dutch oven, pour oil to a depth of 3 inches. Heat oil to 350°.
Remove drumettes from buttermilk mixture, allowing excess to drain. Dredge drumettes in flour mixture, shaking off excess. Fry in batches until golden brown and cooked through, 5 to 6 minutes. Drain on paper towels. Serve with Apple Barbecue Dipping Sauce.