Ponzu Gelatin and Sesame Hummus Enhance Mackerel Nigiri

Intro’s rotating chef concept, currently featuring chef-in-residence Jessica Largey, has made it one of the most notable restaurants in Chicago over the past year. Now there’s a new, second reason to visit the space—tucked behind the kitchen is Naoki Sushi, where Naoki Nakashima is serving sushi and a handful of cooked dishes.

On a recent visit, the most...