Overcooking is the number one cause of tough chicken! The best way to avoid overcooking is to determine doneness by internal temperature, not by the appearance of the meat. As soon as the center of the meat reaches 162°F, remove it from the heat. Immediately transfer the breaded chicken cutlets to a plate and lightly tent them with foil to keep them warm. Allow the meat to rest for at least 5-10 minutes and it will continue cooking to a safe 165°F.