Fill a Highball Glass: Start by filling a highball glass with ice cubes. The ice will help keep your cocktail chilled and pleasantly refreshing.

Pour Dark Rum: Measure out 2 ounces of dark rum and pour it over the ice.

Add Ginger Beer: Carefully pour 5 ounces of ginger beer over the rum. Pour slowly to maintain the layers of the drink.

Garnish: Finish off with a lime wedge for garnish. You can either squeeze some lime juice into the drink for an extra citrusy kick or just pop it on the rim of the glass.