Black Seal Cocktail 2 ounces Goslings Black Seal rum 1 ounce lime juice splash of falernum Shake with ice. Strain into a cocktail glass. Garnish with a lime twist. Note: Gosling's Black Seal rum is a dark rum And if you don't have falernum, you "can" substitute grenadine, although it isn't quite the same thing. Created by: Robert Hess (2000)