Blended Scotch whisky needs little introduction. It is the best selling of all whisky, and fills back bars and liquor cabinets the world over, whether it's Ballantine's, Johnnie Walker or Haig. Blended Scotch whisky, like all Scotch whisky, must be matured for at least three years and a day in oak casks. Blended Scotch whisky is made from grain whisky, which is cheap and efficient to produce, though it has a more neutral character, so they include malt whisky as well, this peps everything up and brings body and complexity.