The gin sour might be the oldest entry in the sour family of cocktails. Its a wonderfully flexible template that went on to birth an entire taxonomy of tart, tasty tipples. Whenever we lay out hands on a fancy new bottle of gin, we mix up a gin sour with it. The lemon and simple syrup are a beautiful base for gins botanical flavors, and its always an adventure to try it with an interesting new gin. We love it with the rose flavors of hendricks, or the woody scent of a barrel-aged gin.