Ouzo

The classic Greek drink Ouzo is made from a precise combination of pressed grapes and herbs and berries including aniseed, licorice, mint, wintergreen, fennel and hazelnut.

Ouzo is usually served as an aperitif, but is also used in some mixed drinks and cocktails.

When mixing Ouzo with water it will turn whitish and opaque. The reason is that the anise oil dissolves and becomes invisible when mixed with a conventional alcohol content, but as soon as the alcohol content is reduced, the essential oils transform into white crystals, which you cannot see through.