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, dried thyme, dried oregano, cayenne pepper, black pepper, and kosher salt in a small bowl. Mix thoroughly to distribute spices evenly.
03 - Brush both sides of each chicken breast with olive oil or melted butter, then press the spice mixture generously onto the surface, ensuring even coverage.
04 - Place a large cast-iron skillet over medium-high heat and allow it to become thoroughly hot, approximately 3 minutes. The pan should be smoking slightly before adding the chicken.
05 - Arrange the seasoned chicken breasts in the hot skillet without overcrowding. Cook undisturbed for 4 to 5 minutes until a dark, charred crust develops. Flip and continue cooking for an additional 4 to 5 minutes until the internal temperature reaches 165°F.
06 - Transfer the chicken to a cutting board or serving platter and allow to rest for 3 minutes, letting the juices redistribute. Serve with fresh lemon wedges on the side.