In a mixing glass, combine blended scotch, ginger liqueur, and bitters, then fill with ice and stir just until chilled, about 20 seconds.
Strain into a old-fashioned glass with one large cube of ice. Float the Islay scotch.
Flame orange peel over drink and drop in.
If desired, add a couple of drops of aromatic bitters in the middle of the glass. Valar morghulis!
An old fashioned variant. If you've got a spicy ginger syrup handy, sub out for the Canton.