01 - In a large bowl, thoroughly whisk together buttermilk, salt, black pepper, paprika, garlic powder, onion powder, and optional cayenne pepper. Submerge chicken pieces, turning to ensure even coating. Cover and refrigerate for a minimum of 1 hour, preferably overnight for optimal tenderness.
02 - Set oven to 425°F. Line a baking sheet with parchment paper or foil, then position a wire rack atop. Lightly grease the rack to prevent sticking.
03 - Combine all-purpose flour, panko breadcrumbs, salt, smoked paprika, baking powder, black pepper, dried thyme, and dried oregano in a shallow dish, blending evenly.
04 - Lift chicken pieces from marinade, allowing excess to drip off. Coat each piece in the flour mixture, pressing gently for full coverage; shake off any loose coating.
05 - Space chicken evenly on prepared rack. Lightly drizzle or spray tops with vegetable oil or melted butter for effective crisping.
06 - Transfer to oven and bake 35–45 minutes, until chicken achieves a golden brown, crispy exterior and reaches an internal temperature of 165°F. For enhanced crunch, broil during the final 1–2 minutes if desired.
07 - Allow chicken to rest for 5 minutes post-baking before serving.