01 - Whisk together buttermilk, olive oil, garlic, salt, pepper, smoked paprika, thyme, oregano, cayenne (if using), and lemon zest in a large bowl until fully combined.
02 - Add chicken pieces to the marinade, turning to coat each piece thoroughly. Cover and refrigerate for at least 8 hours or overnight for optimal flavor development.
03 - Preheat oven to 425°F. Line a large baking sheet with parchment paper or foil and place a wire rack on top.
04 - Remove chicken from marinade, allowing excess to drip off. Discard used marinade. Arrange pieces skin-side up on the wire rack.
05 - Brush chicken lightly with olive oil and sprinkle with additional black pepper. Roast for 40–45 minutes until golden brown and juices run clear, reaching an internal temperature of 165°F.
06 - Let chicken rest for 5 minutes to allow juices to redistribute. Garnish with fresh parsley and serve with lemon wedges.