Granny Smith apple juice gives this sensationally tart mix its famous pucker power. Blended with pure California lemon juice for a smooth flavor that doesn't hide its natural tartness. Combine 2 oz. of vodka with 3 oz. of Master of Mixes Sour Apple mix in an ice-filled shaker, then strain into a martini glass. Next time you crave pucker perfection, reach for Master of Mixes Sour Apple Martini.