Kirkland Signature 18 Year Speyside Single Malt Scotch Whisky is a premium aged expression from the Speyside region of Scotland, bottled by Alexander Murray & Co. for Costco's private label brand. Crafted from 100% malted barley and aged for a minimum of 18 years, this whisky undergoes an ex-bourbon cask maturation followed by a sherry cask finish, lending it a rich and complex character at 40% ABV.

The nose opens with bright fruit notes of orange, peach, green grape, and tropical papaya, underscored by floral honey nectar and a touch of nuttiness. On the palate, malty and nutty sherry influence comes forward alongside honey, apricot, wood, vanilla, buttercream, and warm spice. The finish is gently sweet with woody depth, a mild dark bitterness, and lingering orange peel. The exact source distillery is undisclosed but is widely rumored to be a prominent Speyside house such as Macallan or Aberlour.