The Black Russian is a classic cocktail that originated in the late 1940s and was created by a Belgian bartender named Gustave Tops at the Hotel Metropole in Brussels. The drink was named after the dark and robust flavor profile it inherits from its primary ingredient, vodka, combined with the rich taste of coffee liqueur, notably Kahlúa. The cocktail gained popularity in the 1960s and continues to be a favorite among coffee-flavored cocktail enthusiasts. In the 1970s, a variation named the 'White Russian' was introduced, adding cream and becoming widely recognized due to its association with the movie 'The Big Lebowski.'