The Whiskey Smash is a bourbon refresher built on the 19th-century smash form — spirit, sugar, and herb pounded together over ice — that Jerry Thomas codified in his 1862 bar guide. The modern version, popularized by Dale DeGroff at New York's Rainbow Room, brightens the old julep-style template with muddled fresh lemon, so it lands somewhere between a mint julep and a whiskey sour: oaky and caramel-sweet underneath, with mint perfume and citrus snap on top. Shaken hard and strained over crushed ice, it drinks like summer in a rocks glass.
Garnish: Mint Sprig
Shaken · Rocks · Crushed
muddle
Muddle the fresh lemon and mint leaves with the simple syrup in a shaker to express the lemon juice and mint oils.
add
Add the bourbon and fill the shaker with ice.
shake
Shake vigorously until well chilled.
strain
Strain into a rocks glass packed with crushed ice.
garnish
Garnish with a fresh mint sprig (and a lemon wedge or wheel).