Despite being made with a dash of sweetener rather than sugar this is a very palatable Old Fashioned and many will not be able to differentiate between...
Thanks for the reply. I'm still puzzled by your "add whiskey", though, since you only list one measure of bourbon. Do you stir the bourbon with ice in a mixing glass and then strain or pour into a separate serving glass and add more to taste, or do you divide the one measure of bourbon and mix it in two separate steps?
This doesn't sound right. Stir bourbon with ice, then add (more) whiskey, then add sugar (not sugar-free) syrup? (I make a sugar-free Old Fashioned by muddling a packet of Equal or Splenda sugar-free sweetener in a rocks glass with a splash of water until it dissolves, then adding whiskey, bitters, and ice, and stirring. Garnish with orange peel and/or maraschino cherry. It works well with rye, bourbon, or Irish whiskey, depending on your taste.)