The On The Rocks Knob Creek Old Fashion 375 ml is a pre-mixed cocktail that is made with Knob Creek Kentucky Straight Bourbon Whiskey, bitters, and a hint of orange. It is a classic old-fashioned cocktail that is perfect for sipping on the rocks or as a base for a variety of other cocktails. The 375 ml bottle contains enough for four servings, making it a great choice for entertaining.