To Serve (per person): Combine in shaker 2 oz. coffee, 1.5 oz. dark rum, such as Gosling's, and .5 oz. half-and-half, milk, or more rum, depending on level of turkey haze that needs combating.
Fill with ice, shake for at least 10 seconds, and strain into a chilled cocktail glass. Float a couple of espresso beans on top.