Blue Curaçao is a liqueur flavored with the dried peel of the laraha citrus fruit which is grown on Curaçao. It is colorless, but is often given an artificial coloring (orange or blue). The blue color comes from adding food colorant (E133). It adds a bitter oranges flavor to cocktails. Some cool cocktails with Blue Curacao are the Blue Lagoon and For My Next Trick which is a very nice multi layered cocktail. For the shooters with Blue Curacao try the very cool French Kiss and the Necrophiliac.