Aerstone Sea Cask 10 Years is a single malt Scotch whisky from William Grant & Sons. It is matured in warehouses near the sea on the Ayrshire coast, which gives a mild salty note on the finish. The distillery is not officially named but is widely understood to be Ailsa Bay. It is bottled at 40% ABV and sells for around $30.
Vanilla and Play-Doh also work their way in there. It's soft to taste, however, with the butter and vanilla well counterpointed by salted caramel. There's also a hint of ginger.
These barrels were aged near the sea on the Ayrshire coast, and indeed there’s a hint of the promised sea spray on the finish, but it’s quite mild, giving the conclusion a welcome, slightly salty kick.