Can you overcook chicken if you cook it in broth?

yes you can overcook it in broth as in anything else. i suggest you slow cook it (low heat and not a rolling boil). depending on what size of chicken you have, a whole 1.5 kilo it should be fork tender in an hour and a half. more than that and the meat will become mush and too soft. even if its fork tender there should still be some bite to the meat.