A blend of tequila, lime, simple syrup, and an additional liqueur (often Triple Sec or Grand Marnier), margaritas may vary depending on the recipe, but whatever the blend, their quality depends largely on the quality of the ingredients used. Martha's friend Torie Hallock, who lives in Maine and is the creator of the Skylands margarita, uses Sauza's super-premium aged tequila and Cuervo 1800. The simple syrup in her recipe is infused with thin strips of lime zest.
Curacao, a liqueur flavored with the dried peel of bitter oranges, is what makes the fabulous blue margarita so blue. In keeping with the drink's wonderfully flamboyant tone, serve blue margaritas in extravagantly large glasses.
Margaritas can be made in a blender or served on the rocks, according to taste. Use a citrus reamer, a small, fluted cylindrical wooden tool, to extract every last drop of lime juice.