Fresh blueberries add a unique profile to cocktails and pair well with a variety of spirits. If you are looking for a recipe to use that blueberry liquor in your cabinet, try The Blues. This martini cocktail is easy to make and full of flavours. Giffard is a French liqueur & syrup brand created to used in cocktails. It offers a wide range of fruit liqueurs with genuine flavours: some strong, some subtle such as the Crème de Myrtille (blueberry).