Sea urchin has been a staple of Japanese cuisine for hundreds of years, often featured in sushi and sashimi dishes. More commonly called "uni" when it appears on menus, the delicacy has taken over ...

Considered a delicacy in several parts of the world, sea urchin, or uni in Japanese, is prized for its unique flavor. But the cost of the gonads — the orange tongues found inside an urchin ...