San Francisco · Ramen · counter
Kajiken
JapaneseRamenAbura SobaNagoyaMichelin Guide
Kajiken introduced the Bay Area to abura soba — Nagoya's signature brothless ramen — when its San Mateo outpost opened in February 2023. The brand, founded in Japan in 2010, earned a Michelin Guide 2025 recognition for its handmade noodles tossed in a rich soy-tare oil with chashu and bamboo shoots.
- Price
- ¥
- Area
- San Mateo
- Since
- 2023
- Owner
- Kajiken USA (Kaji Kenichi, founder)

Plate № 53
About
Kajiken was founded in Nagoya, Japan in 2010 by Kaji Kenichi, who built the brand around abura soba, a 'dry' ramen style in which homemade noodles are coated in a seasoned oil rather than submerged in broth. The San Mateo location, opened in February 2023, became the brand's first Bay Area address and generated lines from its inaugural day. The menu centers on variations of the abura soba — original, spicy, and roast beef — alongside karaage and gyoza. In 2025, Kajiken San Mateo earned a Michelin Guide recognition, cementing its status as one of the Bay Area's standout ramen destinations. The ritual of mixing the noodles for 20 seconds before eating is essential to the experience.
Why it's on Washoku Guide
- Kajiken's abura soba earned a Michelin Guide 2025 recognition — rare for a ramen concept in the Bay Area.
- Handmade springy noodles coated in Nagoya-style seasoned oil deliver a richer, more concentrated flavor than conventional broth ramen.
- The fun ritual of mixing for 20 seconds and adding chili or vinegar to taste makes every bowl interactive and customizable.
- Kajiken is a direct import of a celebrated Nagoya original with over 35 locations across Japan and Asia.
No reservations accepted; arrive at opening to minimize wait. The spicy karamen aburasoba and the crispy karaage are the crowd favorites. — Format: Ramen counter. Authenticity: Founded in Nagoya, Japan in 2010 by Kaji Kenichi and expanded globally; the San Mateo location is the brand's first Bay Area outpost and earned a Michelin Guide 2025 recognition.
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