Start by grating lemon zest and chopping your fresh herbs—thyme and parsley—then set them aside. Mince the garlic cloves until fragrant.
In a large zip-top bag or shallow dish, combine lemon zest, chopped herbs, minced garlic, olive oil, lemon juice, salt, and pepper. Whisk or massage the ingredients together to create a vibrant marinade.
Add the chicken breasts to the marinade, ensuring they are well coated. Seal the bag or cover the dish and refrigerate for at least 30 minutes, up to 2 hours, to allow the flavors to infuse and the chicken to tenderize.
Heat your skillet or grill pan over medium-high heat until hot, aiming for about 200°C (390°F). When ready, place the marinated chicken breasts onto the pan, listening for a gentle sizzle.
Cook the chicken for about 6-7 minutes on one side, until it develops a golden-brown crust and releases easily from the pan. Flip carefully with tongs and cook for another 6-7 minutes, or until the internal temperature reaches 75°C (165°F).
Use a meat thermometer to check for doneness. Once cooked, transfer the chicken to a plate and tent loosely with foil. Let it rest for 5 minutes to allow the juices to redistribute and keep the meat moist.
After resting, slice the chicken crosswise for a beautiful presentation, or serve whole. Garnish with extra herbs or lemon slices if desired, and enjoy the bright, aromatic flavors of this dish.