A blend of 100% Blue Agave Tequila and natural agave nectar, making this full-strength cocktail about 1/4 of the calorie content of an average margarita. Bethenny Frankel first served her “Skinnygirl Margarita” on the first season of The Real Housewives of New York City and interest was sparked nationwide. She calls it “the all-natural margarita without the guilt.” Just pour over ice.