Salt and pepper chicken, put in a refractory form. Squeeze juice out of lemon, add salt, pepper, passed through the press garlic and olive oil. Peeled potatoes put in a prepared marinade, let stand 20 minutes. Chop the onion slices and put together with potatoes to the chicken. Pour the marinade and sprinkle with thyme. Put in a cold oven, set the temperature to 200 degrees Celsius and cook for 1.5 hours (until soft potato). Sprinkle with chopped parsley feeding.