This year fermented sushi is in vogue among Tokyo’s gourmet crowd, with people raving about how the maturation of the fish brings out the elusive umami of the meat. As the name suggests, the creation of these dishes involves fermenting the ingredients to enhance the flavours and then using them to make regular sushi. This might sound strange since sushi is usually about having the freshest raw fish, but it’s actually an ancient form of sushi preparation from which the sushi we know today developed, and it’s apparently quite delicious.
However, as it requires great skill to properly ferment fish, there are currently few restaurants in the Tokyo area that specialise in this kind of food, and they’re already booked up by gourmet types leaving you to wait months before you can get a place. However, we’ve found two particular restaurants where you should be able to get a same-day reservation.

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