How to Make It
Combine the whiskey, Fernet, lime juice, and simple syrup, along with the loose mint leaves, in a cocktail shaker with a handful of ice and shake vigorously (you want to bruise the mint leaves to release some of the oils). Strain into an ice-filled rocks or half-pint glass. Garnish with a mint sprig and enjoy.
Why We Like It
If you want to put back something other than the ubiquitous green beer this St. Patrick’s Day, try this South Side Smash from the most Irish whiskey there is: Jameson. Mixed with Fernet Branca, lime juice, and simple syrup, this cocktail is strong, sweet, and a little tart—overall, a great way to begin (or end) a very adult St. Patrick’s Day. And since it’s garnished with mint, you too will have a green drink in your hand. Jameson recommends using its Black Barrel Irish Whiskey for this one, but I used the regular stuff and it was great. Sláinte!