Um. Cuttlefish. It turned to a creamy goo when you tried to chew it. Yuck! My husband had some Uni (sea urchin) at a sushi resturant in Florida and said it tasted like a dirty diaper! My boss in Seattle at the sushi place where I worked talked him into trying it again. He said it must be VERY fresh. We tasted it and it was sweet! But I won't try it anywere else.