"Is Dallas the original home of the frozen margarita? Maybe, and it’s certainly the official drink of the city. The story goes that Mariano’s Hacienda Ranch owner Mariano Martinez created the first frozen margarita machine in the ’70s after being struck by inspiration while watching a Slurpee pour at his local 7-Eleven. Pop in for an original, plus some excellent Mexican food. This spot is low-key and easy, so no need to get dressed up. In fact, wearing stretchy pants is recommended." - Eater Staff