May 23, The Moscow Mule is a simple mixed drink requiring only vodka and ginger beer. There are good reasons for the popularity of this snappy. "This cocktail's origin has nothing to do with Moscow or mules, but after a few sips of this vodka, ginger beer, and lime concoction, no one will care." Pour vodka and lime juice into a mug; add ice cubes and ginger beer. The classic Moscow Mule is served in a copper mug. Feb 6, If you've ever made a Moscow Mule, you know that it's a super simple recipe. There's basically no measuring involved, no cocktail shakers.