Popular in America during Prohibition, the whiskey sour used citrus and sugar to mask the flavor of what was often awful-tasting bootleg liquor. Now that we can get the good stuff again, this recipe has persisted as a mainstay behind bars ever since. This simple cocktail is a good drink to start with when you're learning how to become a great home bartender.
Combine all ingredients in a Boston shaker, and shake vigorously until chilled. Strain over ice into a highball glass, and garnish with a preserved cherry.