Chuck Wagon The chuck wagon was designated the official state vehicle of Texas in 2005. Chuck wagons carried food and cooking equipment on the prairies of the U.S. and Canada as part of wagon trains and was used for feeding nomadic workers like cowboys and loggers. The "cookie" was in charge of the chuck wagon, usually second only to the "trailboss" on a cattle drive. The cookie would often act not only as cook, but also barber, dentist, and banker.