In a shaker filled with crushed ice, combine the ingredients—except the seltzer/soda water—and shake until chilled. Stir in the seltzer/soda water. Pour unstrained into a tall glass. Garnish with mint.

Glass

Highball Glass

Ice

Pebble

Created by the legendary Polynesian-German doctor Bernard Funk in Tahiti and later immortalized by Don the Beachcomber, this proto-tiki classic balances an aggressive citrus punch against the subtle licorice whisper of absinthe. The aged rum provides a mellow foundation while grenadine adds just enough sweetness to temper the tart lime and lemon. Light effervescence from soda water lifts the drink, making it surprisingly refreshing despite its complexity—a medicinal remedy that actually delivers on its promise.