01 - Pat the chicken breasts completely dry with paper towels to ensure proper searing and spice adherence.
02 - Combine smoked paprika, garlic powder, onion powder, thyme, oregano, cayenne pepper, black pepper, and salt in a small bowl. Mix thoroughly until evenly incorporated.
03 - Brush both sides of each chicken breast with olive oil or melted butter. Generously rub the spice mixture over the entire surface, pressing firmly to ensure the seasoning adheres properly.
04 - Heat a large cast-iron skillet over medium-high heat until thoroughly hot, approximately 3 minutes. The pan should be smoking slightly for optimal crust formation.
05 - Place chicken breasts in the hot skillet without crowding. Cook undisturbed for 4–5 minutes until a deep, dark crust forms. Flip carefully and cook another 4–5 minutes until internal temperature reaches 165°F.
06 - Transfer chicken to a cutting board and let rest for 3 minutes to allow juices to redistribute. Slice if desired and serve immediately with lemon wedges.