Generic for whisky made in Scotland in one of three styles: either blended, single-malt, or vatted. Scotch is made by malting grain (allowing it to germinate) and then roasting it on a grate under which burning peat moss produces thick pungent smoke - which gives Scotch its smoky flavor - and the ferments distilled. The distillate is then casked for aging, and is (with water dilution) either bottled - or neutral spirits are added to it (for a blended Scotch) and it is then bottled. Most cocktails call for blended Scotch.
Generally available. Produced and sold in Scotland.