Japanese for the yellow, crunchy roe from herring. Because of its high price, kazunoko is often referred to as "yellow diamonds." It's traditionally eaten at the New Year or on other festive occasions. Kazunoko can be found in Asian markets, generally frozen in small containers.
From The Food Lover's Companion, Fourth edition by Sharon Tyler Herbst and Ron Herbst. Copyright © 2007, 2001, 1995, 1990 by Barron's Educational Series, Inc.