The drink, almost always served in a copper mug, is making a resurgence in bars across the country today.
The Moscow Mule was invented in 1941 in Los Angeles by John G. Martin, a food and spirits distributor on the east coast.
Make your own:
-2 oz. vodka
-1/4 oz. of lime juice
-5 oz. ginger beer
-serve over rocks in a copper mug
-garnish with a lime wedge.