01 - In a small bowl, combine minced garlic, chopped parsley, rosemary, thyme, olive oil, lemon juice, salt, and black pepper. Mix thoroughly until a fragrant, well-blended marinade forms.
02 - Place chicken breasts in a large resealable plastic bag or shallow dish. Pour the marinade over the chicken, massaging and turning each piece to ensure even, complete coating. Marinate at room temperature for at least 15 minutes, or refrigerate for up to 2 hours for deeper flavor penetration.
03 - Preheat the oven to 400°F or heat an outdoor grill to medium-high, ensuring the grate is clean and lightly oiled to prevent sticking.
04 - Take the chicken breasts out of the marinade, allowing any excess to drip off. Discard the remaining marinade — do not reuse.
05 - For oven method: Arrange the chicken in a single layer in a baking dish and bake for 25 to 30 minutes, until the internal temperature reaches 165°F when checked with a meat thermometer. For grill method: Grill the chicken for 6 to 7 minutes per side until fully cooked through with appealing char marks.
06 - Transfer the cooked chicken to a cutting board and let it rest for 5 minutes to allow the juices to redistribute. Garnish with freshly chopped parsley and serve alongside lemon wedges.