FILL GLASS: Fill a copper mug or rocks glass completely with ice.
ADD LIQUIDS: Pour 2 ounces Irish whiskey and 5 ounces ginger beer over the ice.
ADD LIME: Add 1 ounce fresh lime juice and stir gently until combined.
GARNISH: Garnish with a mint sprig or lime wedge. Serve immediately.
Notes
Glassware: A copper mug keeps this cocktail extra cold, but any sturdy glass works just fine.Lime Tip: Fresh lime juice makes a noticeable difference. Bottled juice will dull the flavor.Whiskey Choice: Use a smooth Irish whiskey you enjoy drinking straight. Jameson-style whiskeys work especially well.Make It Sweeter: If you like a slightly sweeter drink, add a splash of simple syrup or use a sweeter ginger beer.