Dried Wild Scottish Chaga
A curious mushroom which grows almost exclusively on birch trees, Betula species. The part used is the sterile sclerotia, an irregular shaped lump which bursts out of the tree. It is black like burnt cinders on the surface and inside is like stale crumbly chocolate cake. Traditionally used to make a decoction which can be drunk as a tea/coffee or used as a mushroom stock in cooking. It can also be used to make tinctures or as a flavouring for brewing.