62.7 ABV Cask3609. Refill Sherry Butt. Bottled in 2018.Â Â Highland Park Single Cask California Edition Scotch Whisky, a single cask release made available exclusively to California. Part of their acclaimed Single Cask series, the Scotch is crafted from 100% malted Scottish barley, dried over peat flames, and distilled in copper stills before being aged in refill sherry butts. After this long maturation period, the barrel is tapped and its contents bottled at cask-strength to create a unique and intense expression that is bound to please even the most discriminating Scotch drinker.