Anybody ever try Sahlep? It's a Turkish drink made from the starchy tubers of several members of the genus Orchis. It has a thickening effect on water, making kind of a hot chocolate consistency. It's often flavored with rose water or other ancient sweeteners. Some believe it is an aphrodisiac.
A friend of mine brought some back from his last trip to Turkey and shared some with me. Haven't tried it yet, but I'll let you know.