What ingredients are used in a B-52 cocktail?

The B-52 cocktail is traditionally made with Kahlua, Bailey's Irish Cream, and Grand Marnier. This layered shot showcases the distinct flavors of each component, starting with the coffee liqueur Kahlua, followed by the creamy texture of Bailey's Irish Cream, and topped off with the orange-flavored Grand Marnier, which adds a citrusy finish. Each ingredient plays a vital role in giving the B-52 its signature taste and aesthetic appeal, as the layers are visually striking when served.

The other combinations do not accurately capture the essence of a B-52. For instance, using bourbon or whiskey instead of Kahlua would change the foundational flavor profile, as would substituting other liquors like vodka or rum. Additionally, the use of vermouth and Angostura does not align with the flavors or presentation typical of a B-52 cocktail. The correct answer highlights the specific liqueurs that are essential to achieving the classic recipe.