Butterfly Pea Flowers, often used in cosmetics and herbal remedies, once brewed have a slightly woody taste not unlike green tea. This light flavour isn't the main draw card, however - once infused, the liquid becomes a beautiful bright blue that then instantly changes to purple once acidity is introduced. Freeze into ice-cubes for magical looking cocktails, or infuse into a simple syrup for a syrup that looks anything but simple!