Light the grill or heat the broiler. In a shallow dish, combine the lemon juice with the thyme, red-pepper flakes, garlic, oil, salt, and black pepper. Coat the chicken with the mixture.
Grill the chicken breasts over moderately high heat or broil them for 8 to 10 minutes. Turn and cook until the chicken is just done, about 10 minutes longer.
Try any dried herb you like in place of the thyme. Marjoram, oregano, rosemary, or sage are all good choices.
Use boneless, skinless chicken breasts instead of bone-in breasts. Grill them until just done, about five minutes per side over moderately high heat.
Use a quartered chicken instead of bone-in breasts. Cook the breast sections as directed in Step 2 and allow thirteen minutes per side for the leg quarters.
Credit: Food & Wine, May 2014- http://www.foodandwine.com/recipes/grilled-chicken-breasts-lemon-and-thyme