Single malt scotch whisky that has been aged in ex-bourbon barrels is arguably the most classic style. This is, in large part, due to the fact that the Scotch industry will import a vast number of barrels from America that can only be used once for bourbon. There's still plenty of flavour in those casks, making them perfect to age scotch whisky in. The flavours you'll find in single malt scotch whisky that has been aged in ex-bourbon barrels include vanilla, caramel, toffee, and oak.
Here are some of the best examples of independent ex-bourbon cask whisky you'll find.