In a copper mug or glass with ice, add 2 ounces vodka.
Juice half a lime into the mug and add in the lime shell when done.
Top off the drink with 6 ounces of ginger beer.
Garnish with a lime slice and serve!
Choosing a brand or type of alcohol for your Moscow Mule is mostly a preference-based decision, but if you want to be the most authentic, you can choose Smirnoff brand vodka as that’s what was used in the original concoction.