Chirashizushi

Chirashizushi — also called barazushi — belongs to the haya-zushi family, the fast sushi that emerged during the Edo period, when rice vinegar replaced the older lactic-acid fermentation and allowed sushi to be assembled immediately. No single inventor or founding year is documented for chirashizushi itself. Three regional styles are documented: Edomae chirashizushi, with uncooked ingredients arranged on top of the rice; gomokuzushi of the Kansai region, with cooked or uncooked ingredients mixed into the body of the rice; and sake-zushi of Kyushu, with rice prepared with rice wine instead of vinegar. Chirashizushi is traditionally eaten on Hinamatsuri — the Girls' Festival in March — and on Children's Day in May.

A bowl of chirashizushi is colorful and abundant: vinegared rice beneath, topped with glistening slices of tuna, salmon, and shrimp; thin ribbons of egg; shiitake mushrooms simmered sweet; cucumber and lotus root for crunch. Each bite combines the clean acidity of the sushi rice with the varying textures and flavors of the toppings. Eaten cold, it is a festive, celebratory dish designed for sharing.

Chirashizushi rests on the vinegar-seasoning of the rice and the arrangement of toppings. Short-grain white rice is cooked and seasoned while hot with a mixture of rice vinegar, sugar, and salt — the sushi-zu; the vinegar's acetic acid supplies the sourness that the older narezushi once obtained from lactic-acid fermentation, and the acid also firms the rice's surface starches, keeping each grain distinct rather than mushy. The rice is cooled to body temperature, then placed in individual bowls; toppings are arranged artfully on top in the Edomae style, or mixed into the rice in the Kansai gomokuzushi style. The variety of toppings — raw and cooked, soft and crunchy, fish and vegetable — provides a different combination in every bite, which is the dish's defining pleasure.