Mariano Martinez invented the frozen margarita machine in 1971, helping popularize frozen margaritas in Tex-Mex restaurants.
Martinez was a Dallas restaurateur who adapted a soft-serve ice-cream machine to freeze and dispense margaritas consistently. The idea addressed a practical problem: blending each drink individually was slow during busy service, while a machine could keep the mixture cold and ready to pour.
The invention is associated with Mariano's Mexican Cuisine in Dallas, where Martinez reportedly modified a machine from a 7-Eleven. His innovation helped turn the frozen margarita into a recognizable restaurant and bar specialty across the United States.
The machine did not invent the margarita itself. The cocktail’s origins are disputed, with several competing stories from the 1930s and 1940s. Martinez’s specific contribution was the frozen, machine-dispensed version, not the original tequila, lime, and orange-liqueur recipe.