A lime is a lime is a lime
Fresh squeezed lime juice is the key ingredient for making a marvelous margarita. The most common lime in the U. S. is the thick skinned Persian lime. In Mexico, the margaritas are made with a Mexican lime or Key lime. Key limes are smaller, thinner skinned and are more tart with a bitter flavor compared to the Persian variety. Due to America’s sweet tooth, a lot of recipes use the prepared margarita mixes that use sugar or fructose corn syrup (and lots of it) along with imitation lime juice. The “Secret Sexiest Margarita” featured on the Sal del Mar website is a more authentic margarita that uses orange liqueur and orange juice for all the sweetness it needs to compliment the fresh limes. So don’t substitute!