In May 2018 we visited Sake 107 and were so impressed we canceled a reservation for the next evening and returned for the 2x in two days. In 10 yrs of retirement traveling for food, this is only the third time we have done this. We normally do a mix of half return visits, half new places, averaging 10 restaurants per trip. We visited again with friends July 7th.
Sake 107 was profiled after our visits by KQED: https://www.kqed.org/bayareabites/129.... It discusses owner/chef Eiji Ando's use of the hatcho miso, an aged miso which is intense in flavor, very dark, and quite different than the usual miso.
Altho open for lunch, we concentrated on dinner with its more interesting, larger menu. Compared to Hana/Rohnert Park, the menu is much more modest. 107's sashimi offerings are limited to 8 types, with 3-5 daily specials.
The sashimi is exquisitely fresh. The specials were excellent, a wonderful way to try fish so often ignored by the general public. Don't miss the kaisen salad with its diced sashimi garnish; it's wonderful.
The agedashi tofu comes with or without vegetables; we tried it with and loved it. I consider this dish one of the true tests of a restaurant. You cannot fake this one; it is just 3 ingredients. The freshest most flavorful tofu, the lightest but crisp starch crust fried in fresh oil, the savory dashi. Spouse called this the best version he's ever had; we rate Hana's version very high but Sake 107's just a smidge above. There is no katsuobushi on it, nor does it need any. That's how good it was.
Both Hana and Sake 107 make outstanding nigiri and sashimi. You can't go wrong with either restaurant. It won't be cheap (they're pretty much identical in pricing), but the quality of both is as good as it gets.
I will post a followup covering visits 2 and 3 since this is already quite long.
Highly recommended. Small storefront in downtown Petaluma, nice sushi counter, lovely modern dining room.
107 Petaluma Blvd. North, Petaluma, CA
Cuisine: Traditional sushi