01 - Submerge chicken pieces in buttermilk within a large bowl. Cover and refrigerate for minimum 1 hour, extending to overnight for enhanced tenderness.
02 - Combine flour, salt, black pepper, paprika, garlic powder, and cayenne pepper in a shallow dish. Whisk thoroughly until spices are evenly distributed throughout the flour.
03 - Lift chicken from buttermilk, allowing excess liquid to drain away. Press each piece firmly into seasoned flour mixture, ensuring complete coverage. Transfer coated pieces to wire rack.
04 - Pour vegetable oil into large deep skillet or Dutch oven. Bring temperature to 350°F, monitoring with thermometer for accuracy.
05 - Arrange chicken in hot oil skin-side down, avoiding overcrowding. Fry for 12-15 minutes, turning once halfway through. Confirm doneness at 165°F internal temperature. Remove when golden brown and fully cooked.
06 - Transfer cooked chicken to clean wire rack positioned over baking sheet, allowing excess oil to drip away. Garnish with chopped parsley and accompany with lemon wedges.