What would a Literary Cocktail collection be without a little Hemingway? "In his 2001 book Straight Up or On the Rocks, William Grimes claims that Ernest Hemingway "often worked his way through about a dozen of these lime slurpees, sometimes ordering doubles, which became known as Papa Dobles." Recipe: Serves 1 Ice 2 ounces white rum 3/4 ounce fresh lime juice 1/2 ounce fresh grapefruit juice 1/2 ounce maraschino liqueur 1 lime wheel, for garnish (optional) Fill a cocktail shaker with ice. Add all of the remaining ingredients except the lime wheel and shake well. Strain into a chilled coupe and garnish with the lime wheel.