Boston · Ramen · casual
Ganko Ittetsu Ramen
Sapporo-style ramenJapanese-ownedCoolidge Corner BrooklineNishiyama noodlesTokyo-born owner
Chef-owner Kenichi Iwaoka was born and raised in Tokyo before coming to Boston, where he co-owned Osushi and eventually launched Ganko Ittetsu Ramen in Coolidge Corner. His Sapporo-style broth uses noodles from Nishiyama — Hokkaido's oldest and most respected noodle manufacturer — shipped fresh from Japan weekly.
- Price
- ¥¥
- Area
- Coolidge Corner, Brookline
- Since
- 2014
- Chef
- Kenichi Iwaoka
- Owner
- Kenichi ('Ken') Iwaoka

Plate № 63
About
Kenichi 'Ken' Iwaoka is a Tokyo native who brought his passion for ramen to Boston's Brookline neighborhood with Ganko Ittetsu Ramen, a Coolidge Corner destination for serious Sapporo-style bowls. What distinguishes Ganko Ittetsu from other Boston ramen shops is Iwaoka's commitment to supply-chain authenticity: his noodles come exclusively from Nishiyama, Hokkaido's oldest noodle manufacturer, air-freighted from Japan on a weekly basis. Broths are built from scratch using traditional Sapporo methods, with rich pork-miso as the flagship. The restaurant participates in the annual Japan Festival on Boston Common, connecting it to the area's Japanese cultural community. Karaage alongside the ramen bowls is a particular standout.
Why it's on Washoku Guide
- Noodles from Nishiyama — Hokkaido's oldest noodle maker — flown fresh to Brookline weekly. No shortcuts on the most critical component.
- Tokyo-born owner-chef who built his Sapporo ramen craft from genuine Japanese cultural knowledge, not culinary tourism.
- One of Boston's only Sapporo-style specialists — distinct from the more common Tokyo and Hakata styles served elsewhere.
- Japan Festival on Boston Common vendor — embedded in the area's Japanese cultural community year-round.
Confirmed authentic: Japanese-owned and led (Kenichi Iwaoka, Tokyo-born). Founded approximately 2014. Nishiyama noodles imported weekly from Hokkaido.
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