Which cocktail is specifically referenced as a variation using gin?

The Red Snapper is a cocktail specifically referenced as a variation using gin. It is essentially a gin-based version of the classic Bloody Mary, which traditionally calls for vodka. In a Red Snapper, gin replaces vodka, and the cocktail retains the same key components, such as tomato juice, lemon juice, Worcestershire sauce, and various spices. This substitution creates a different flavor profile that highlights the botanicals in gin compared to the neutral base of vodka, providing a refreshing and aromatic twist to the classic recipe.

The other options listed are not variations using gin. For instance, the Bloody Maria is a tequila-based version of the Bloody Mary, while the Salty Dog typically features vodka or gin but is more commonly made with vodka. The Tequila Sunrise, on the other hand, is distinctly a tequila cocktail, making it unrelated to gin variations. This distinction is critical in understanding the landscape of mixed drinks and their foundational spirits.