Frozen Grilled Eel

Grilled unagi is a relatively expensive delicacy, prized not only for its flavor but also for its legendary stamina-giving properties. It's traditionally eaten during the hottest part of the summer (on the "Day of the Ox" on the lunar calendar) to provide strength and vitality for the rest of the year. What's more, Conger eels are so high in lipids that they are known particularly for taste.