うに

うに refers to both the sea urchin animal and its edible roe. In food contexts, it specifically means the gonads, prized as a delicacy.

Writing

Several kanji exist: 雲丹(うに) (processed/salted roe), 海胆(うに) or 海栗(うに) (the animal). Hiragana うに is standard in most contexts.

Common dishes

• うに丼(どん): sea urchin rice bowl
• うに軍艦(ぐんかん)巻(ま)き: sea urchin battleship sushi
• うにパスタ: sea urchin pasta
• うにの刺身(さしみ): raw sea urchin

Cultural note

Considered one of the top sushi toppings alongside まぐろ (tuna) and いくら (salmon roe). 北海道(ほっかいどう) is especially famous for high-quality うに. Fresh うに is expensive; the best varieties can cost several thousand yen per piece at sushi restaurants.