01 - Pat chicken breasts completely dry using paper towels to ensure proper seasoning adhesion.
02 - Combine smoked paprika, garlic powder, onion powder, thyme, oregano, cayenne pepper, black pepper, and salt in a small bowl. Stir thoroughly to distribute spices evenly.
03 - Brush olive oil or melted butter over both sides of each chicken breast. Press spice mixture generously onto the surface, ensuring complete coverage.
04 - Place cast-iron skillet over medium-high heat and allow it to become thoroughly hot, approximately 3 minutes. The pan must be smoking hot for proper searing.
05 - Add seasoned chicken breasts to hot skillet. Cook undisturbed for 4 to 5 minutes until a dark, crusty exterior forms. Turn carefully and cook an additional 4 to 5 minutes until internal temperature reaches 165°F.
06 - Transfer chicken to a cutting board and allow to rest for 3 minutes. This redistributes juices for maximum tenderness. Serve immediately with lemon wedges.