Vodka and gin are very similar, but juniper berries give gin its slightly floral flavor. Adding gin to a Moscow Mule adds a subtle herbal-floral note that is complemented by the ginger beer. I was skeptical the first time I had a gin mule . I thought the ginger beer would overpower the subtleties of gin. But, if anything, it amplifies it in a very pleasant way! Try any of the different types of gin for unexpectedly exciting flavor combinations (I’m partial to Hendrick’s cucumber notes and London dry gins).