RecipesRum Imperial Highball By Ashley Bray - April 17, 2017 1½ oz. Barceló Imperial Rum ½ oz. Orange Curacao ¼ oz. Fresh Lime Juice 2 Dashes Angostura® Bitters 2 oz. Ginger Beer Build in a highball glass and fill with ginger beer. Garnish with a lime wheel and an orange slice. Created by Ron Barceló