Specifically: Texas’ best marg comes from Mariano’s Hacienda on Skillman Street, near Dallas’ Lake Highlands, it said.
While it would be impossible to have sipped all the margaritas in our great state — though fun to try — Chowhound’s choice is a safe one. In 1971, Mariano’s owner Mariano Martinez invented the frozen margarita machine, taking inspiration from the Slurpee machine at 7-Eleven.
It was a hit: “Martinez doesn’t know the exact amount of frozen margaritas he has served over 50 years, but he thinks that number is in the millions,” Dallas Morning News reporter Imelda Garcia wrote in 2025, telling the fascinating story of this invention…