Glenfiddich Special Edition Sherry Cask Finish single malt Scotch whisky matured for 12 years in American and European Oak Sherry casks before finishing in Amontillado casks adding lively notes of dried fruits and a delicately spicy finish. The Amontillado Sherry Casks are from the Spanish Sherry region of Jerez and are the rarest of Sherry Casks. Every year, Amontillado casks make up less than 5% of all our imported sherry casks, illustrating their rarity and desirability. Best enjoyed neat, on the rocks, with a splash of water, or with club soda to expand the flavor.