Auchroisk (also known as Singleton of Auchroisk) is a Speyside distillery founded in 1972 by the Justerini & Brooks group to meet the growing demand for blended whisky. Now owned by the Diageo group, it was a pioneer of double maturation, but never credited as such.

A 29 year old single cask Auchroisk (#22450) distilled in 1979 and bottled in 2008 by Signatory Vintage. Signatory Vintage was founded in 1988 by Andrew Symington, who previously worked at Prestonfield House, Edinburgh, where he would select casks specially for the hotel. In 2002, he bought the Edradour distillery in Pitlochry, in the Highlands of Scotland and moved Signatory Vintage to the site, including the warehouses opposite the distillery. A limited edition of 474 bottles.