At 45 percent alcohol by volume, Jack Daniel's Single Barrel benefits greatly from a few drops of pure spring water or a single, large ice cube. This slight dilution helps open up the rich aromas of toasted oak and sweet vanilla.
Serve your whiskey in a heavy-bottomed rocks glass to allow the complex bouquet of caramel, dark fruit, and spice to gather at the rim before you take your first sip.
Let the spirit breathe for a few minutes in the glass after pouring. This brief oxidation softens the initial ethanol warmth and reveals the deep, layered sweetness underneath.