Gobo, or burdock root, may look like a piece of wood, but it has been treasured in Japan for centuries. With a dense, rich aroma similar to truffles, gobo can be used in a large variety of dishes. Rich in dietary fiber, it is also said to improve health and appearance. We visit a gobo farm, a wholesaler, and a chef who uses gobo in his inventive recipes in order to discover the secret behind this strange-looking but delicious root.