A chili dog, with its generic hot dog and ground beef-based sauce and other toppings, is not to be confused with a Coney Island hot dog, a European-style Frankfurter Würstel (Vienna sausage) of German origin having a natural lamb or sheep casing, topped with a beef heart-based sauce, which was developed by Greek immigrants in southeastern Michigan.
The Texas hot dog, Texas chili dog, Texas hot, or Texas wiener is a hot dog with chili or hot sauce; it is served in various regions of the United States in variations with assorted condiments. The Texas wiener was created in Paterson, New Jersey before 1920 and in Altoona, Pennsylvania by Peter "George" Koufougeorgas in 1918 and originally called Texas Hot Wieners. The "Texas" reference is to the chili sauce used on the dogs, which actually has a stronger Greek cuisine influence due to the ethnicity of the cooks who invented it. It is considered a unique regional hot dog style. From its origins, the invention spread to the Pennsylvania cities of Scranton and Philadelphia. Altoona's original Texas Hot Dogs shop is still open today in downtown Altoona on 12th street.