Which of the following cocktails contains the least amount of vodka?

The Lemon Drop Martini is known for its balance of flavors, typically combining vodka with lemon juice and a sweetener like simple syrup. While it does contain vodka, the overall composition leans heavily on the lemon juice and sweetness, which can result in a cocktail that feels less vodka-forward compared to others. In contrast, the other cocktails, such as the Cosmopolitan and Black Russian, have a more pronounced vodka presence due to their recipes, where vodka serves as a primary ingredient alongside fewer mixers.

The Cosmopolitan includes vodka, Cointreau, cranberry juice, and lime juice, making vodka a significant component of its flavor profile. The Black Russian is primarily composed of vodka and coffee liqueur, ensuring that vodka is dominant. The Madras features vodka mixed with orange juice and cranberry juice, but again vodka plays a major role in both flavor and quantity. Therefore, considering the overall composition and serving sizes, the Lemon Drop Martini indeed has the least amount of vodka compared to the others listed in the question.