Final answer:
The traditional alcohol used in a Blueberry Ginger Smash is bourbon. It's chosen for its ability to complement the blueberry and ginger flavors.
Step-by-step explanation:
The alcohol that comes with the Blueberry Ginger Smash cocktail is bourbon. This drink is a mix of blueberry, ginger, and citrus flavors, typically served with bourbon to complement the freshness of the blueberries and the spiciness of the ginger. Every establishment can have its own twist on the drink, but bourbon is the traditional spirit used in a Blueberry Ginger Smash.