In bowl, mix chicken, buttermilk and 1 tbsp. salt; drain. In another bowl, mix flour, cornstarch, 3 tsp. garlic powder, 2 tsp. cayenne and 1 tsp. salt; add chicken. Toss to coat twice. In skillet, deep-fry in oil until golden, 6 minutes. Drain on paper towels; season. Whisk 1/4 cup frying oil with remaining garlic powder and cayenne; brush over chicken.
Sweet Heat: Just before serving, drizzle chickenwith honey to complement the spicy crust.