The Moscow Mule is a refreshing and zesty cocktail that gained popularity in the 1940s. It is made with vodka, ginger beer, and lime juice. To make a Moscow Mule, pour vodka and lime juice into a copper mug filled with ice, then top it off with ginger beer. Garnish with a lime wedge. Sip on this effervescent and tangy cocktail and let it transport you to the streets of Moscow.