Dekuyper Curacao Blue 48 is a bright blue liqueur with a sweet, citrus flavor. It is made from distilled extracts of oranges, lemons, and Curacao fruit, which is a bitter orange native to the Caribbean island of Curacao. The liqueur is also colored with artificial blue dye.\n Dekuyper Curacao Blue 48 is a popular ingredient in many cocktails, including the Blue Hawaiian, the Blue Margarita, and the Mai Tai. It can also be enjoyed on its own, chilled or over ice.