This simple mix of dark rum and ginger beer over ice has roots in colonial Bermuda, where England’s Royal Navy opened a ginger beer plant in the late 19th century. The drink was traditionally made with a dark, heavy Demerara-style rum, which was part of the sailors’ daily rations. A note: Gosling Brothers bought the trademark to the Dark ’n’ Stormy name and recipe, so Gosling’s Black Seal rum is the official rum of record for this drink.