Directly in the copper mug, gently muddle fresh lime juice and mint to release the mint's fragrant oils.
Pour the Irish whiskey into the copper mug with the mint and lime juice. Add a big handful of ice. I like using Jameson whiskey here.
Now we give our Irish mule a good stir to chill. I like to stir until the outside of the copper mug starts to form condensation.
For our final step, we pour in some chilled ginger beer. We give it a gentle stir to combine and then garnish with a fresh mint sprig if desired.
When you need a refreshing cocktail that's perfect for St. Patrick's Day or just a night on the patio, try this easy Irish mule. One sip and you will fall in love.