The Valencian horchata is a refreshing drink made from small tubers called "tiger nuts" shaped like
knots that come from the roots of the hazelnut sedge (Cyperus esculentus), which is named for the shape of its fruit,
similar to the hazelnut.
Tiger nuts have been used for 4,000 years. In the tomb of Pharaoh Rekhmire, paintings depicting bread
made with honey and tiger nuts were found.