If we’re going to be pedantic about it, when you make an Old Fashioned with a single malt or blended Scotch whisky, some enthusiasts will point out you’re not drinking an Old Fashioned at all, you’re actually drinking a Rob Roy. But what’s in a name, as another ‘old fashioned’ favourite once wrote? When you swap out a bourbon for a blended or single malt Scotch, you can really play with flavours and get something unexpected from the traditional cocktail. Consider something like a peated Scotch for a smoky twist, though it's a significant departure from the classic recipe.