Which cocktail is traditionally served in a highball glass?

A highball glass is typically used for cocktails that are served with a larger volume of mixer, which allows for dilution and a refreshing drink experience. The vodka soda is a classic example of a highball cocktail, as it combines vodka with soda water, creating a light and effervescent drink that is perfect for a highball presentation.

The use of a highball glass for the vodka soda emphasizes the drink's refreshing qualities and allows for ample ice, enhancing the flavor and experience of the beverage. Furthermore, this glass style is designed to hold a larger amount of liquid, making it ideal for cocktails that are primarily spirit-forward with a significant mixer component.

In contrast, cocktails like the margarita, Old Fashioned, and whiskey sour are traditionally served in different types of glassware. Margaritas typically go in a margarita or coupe glass, Old Fashioneds are served in an Old Fashioned tumbler, and whiskey sours are often served in a rocks glass or coupe, indicating their unique characteristics and serving traditions.