A classic, refreshing Greyhound is made with 1.5 to 2 oz of vodka (or gin) and 4 to 5 oz of freshly squeezed grapefruit juice. Simply pour the ingredients over ice in a rocks or highball glass, stir gently, and garnish with a lime wheel or a thin slice of grapefruit. Drink Recipe Who says that a good cocktail needs to be complicated? Or that...