01 - Pat the chicken breasts completely dry with paper towels to ensure proper seasoning adhesion and crust formation.
02 - Combine smoked paprika, garlic powder, onion powder, thyme, oregano, cayenne, black pepper, and salt in a small bowl. Mix thoroughly until uniformly distributed.
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 - Place a large cast-iron skillet over medium-high heat and allow it to become very hot, approximately 3 minutes. Proper preheating is crucial for achieving the signature blackened crust.
05 - Add the seasoned chicken breasts to the hot skillet. Cook without moving for 4-5 minutes until a dark, crispy crust forms. Flip and cook for an additional 4-5 minutes, or until the internal temperature reaches 165°F.
06 - Remove the chicken from the skillet and let rest for 3 minutes to allow juices to redistribute. Serve immediately with fresh lemon wedges.