Whiskey, also spelled whisky, is a type of hard liquor distilled from a variety of grains, including barley, rye and corn. Whiskey is typically distilled two to three times, then aged in oak barrels to add flavor, with longer aging periods associated with more complex flavors.
Renowned whiskey types include American bourbons such as Jack Daniels, Scotch single-malts like Laphroaig, and Irish blends such as Jameson.