Black Seal is rich, smooth, full-bodied and nuanced with butterscotch, vanilla and caramel .Gosling's Black seal rum is an original recipe dating back to the mid 19th century. A blend of aged rums distilled from molasses, it is the key ingredient in Bermuda's national drink, the dark'n'stormy: twon parts Goslings Black seal, two parts ginger beer, over ice with a fresh squeeze of lime.