01 - In a small mixing bowl, combine the rosemary, thyme, parsley, minced garlic, smoked paprika, sea salt, black pepper, cayenne pepper (if using), olive oil, and lemon zest. Stir thoroughly until a thick, fragrant paste forms.
02 - Pat the chicken breasts dry with paper towels. Rub the herb paste generously over each breast, ensuring full, even coverage. Let the chicken marinate at room temperature for at least 10 minutes, or refrigerate for up to 2 hours for deeper flavor penetration.
03 - Preheat an outdoor grill or grill pan to medium-high heat, approximately 400°F.
04 - Place the chicken breasts on the hot grill. Cook for 6 to 8 minutes per side, until the internal temperature reaches 165°F and the exterior develops a nicely charred crust. Avoid pressing down on the chicken while grilling to retain juices.
05 - Transfer the grilled chicken to a serving platter. Loosely tent with aluminum foil and allow it to rest for 5 minutes so the juices redistribute evenly throughout the meat.
06 - Plate the chicken alongside lemon wedges and finish with a sprinkle of freshly chopped parsley.