Toronto is a bold and rich classic cocktail based on Canadian rye whisky and Fernet Branca—the bittersweet Italian amaro. Other ingredients include simple syrup or maple syrup. Some recipes include bitters, and some replace whisky with brandy (usually Cognac).
The recipe was first published as Fernet Cocktail in Robert Vermeire's Cocktails: How to Mix Them. Vermeire states that the cocktail was appreciated by the citizens of Toronto. It was later featured in several other publications as a Toronto Cocktail.