The drink most commonly associated with being served in a copper cup is a Moscow Mule.
The Moscow Mule is a classic cocktail known for its refreshing flavor and distinctive presentation. It typically includes the following ingredients:
- Vodka
- Ginger Beer
- Lime Juice
- Garnish (often a lime wedge or mint sprig)
The tradition of serving a Moscow Mule in a copper mug is believed to have originated in the 1940s as a marketing tactic to popularize both vodka and ginger beer. The copper mug helps keep the drink cold and also potentially enhances the flavor experience for some people.