Years ago, the lobby of the downtown San Jose Fairmont Hotel was elegant if a tad sleepy. But since taking over that prime spot in 2022, the luxurious Signia by Hilton Hotel has transformed that space into a splashy, happening restaurant, Aji Bar and Robata.

Done up with loungey couches, an artsy angular chandelier, arches galore, and a horseshoe-shaped bar that’s dramatically lighted underneath, the restaurant serves Nikkei or Japanese-Peruvian cuisine. On Tuesdays, Fridays, and Saturdays, there’s also a DJ or live music.

I had a chance to dine there last Thursday, a more sedate night in comparison, when I was invited in as a guest of the restaurant.

Executive Chef Joe Derla oversees Aji, as well as all other food operations at the hotel. Raised on the Big Island of Hawaii, he may have been destined to be a chef — even if at one point he trained to be a Nascar driver. After all, his mother was a chef (and his dad the chief of police). One of nine children, Derla and all of his five brothers are all chefs. Talk about runs in the family.

The name of the restaurant works two ways: Aji can be pronounced “ah-hee” as in the Japanese word for “taste” or “ah-jee” as in the Peruvian word for “spicy pepper.”

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