England

Ah blessed science.

To develop and select the Whiskey Bros. approved Rob Roy we need research. We pulled up the eight blended whiskys that we happen to have on hand: Buchannan 12, Chivas Regal 12 Chivas Regal 18, Famous Grouse, Johnnie Walker Black, Johnnie Walker Green, Johnnie Walker Red, And Suntory Hibiki for evaluation. We promptly put the Hibiki back away where it belongs, before my wife beat me.

The Rob Roy was First served at the Dorchester Hotel London, 1909 and Johnnie Walker was the Scotch of choice. Hence our inclusion of the three most common varieties of Johnnie Walker in this test.

We've decided to persue the "Perfect" Rob Roy, also known as Beal's Cocktail which is made with equal parts dry and sweet vermouth, a couple of dashes of bitters and Blended Scotch Whisky.