The History Of The Rob Roy Cocktail.
The earliest known Rob Roy recipe comes from the 1908 Boothby book “The Worlds Drinks and How to Mix Them” Boothby credits the cocktail to Johnny Kent of San Francisco. His recipe is a scotch, dry vermouth, and angostura bitters cocktail, which is very good. The more common recipe is the Waldorf-Astoria recipe which is 1:1 scotch and sweet vermouth with orange bitters. Other than scotch, the two recipes are entirely different. Both are fantastic cocktails, and even though the Waldorf-Astoria recipe is more popular, the Boothby recipe is worth trying.