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. Press the spice mixture generously onto the chicken, ensuring complete coverage on all surfaces.
04 - Heat a large cast-iron skillet over medium-high heat for approximately 3 minutes until the pan is very hot. Proper heat ensures the characteristic blackened crust develops.
05 - Place chicken breasts in the hot skillet without moving them. Cook for 4-5 minutes until a dark, crispy crust forms. Flip carefully and cook for an additional 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 and serve immediately with lemon wedges on the side.