Preparation Drop sugar cubes in a rocks glass; sprinkle with bitters and add citrus wheels, cherry, and grenadine. Using a muddler or the handle of a wooden spoon, mash just to release fruit juices and oils. Add bourbon. Fill glass with ice cubes; stir to combine. Top with equal parts club soda and ginger ale.
Preparation Drop sugar cubes in a rocks glass; sprinkle with bitters and add citrus wheels, cherry, and grenadine. Using a muddler or the handle of a wooden spoon, mash just to release fruit juices and oils. Add bourbon. Fill glass with ice cubes; stir to combine. Top with equal parts club soda and ginger ale.