The first time I tried it was in London, at La Porte des Indes, after an intense, witty and amazing dinner.
They are little balls of white tea leaves, hand-crafted. When placed in boiling water they expand and open into a flower shape. It is fascinating to see the process when it is opening.
In addition to its delicate flavor it is a good seal for the end of a dinner or a beautiful companion during snack time.