肥前屋 has one of the best eel rice I’ve had outside Japan. This the locals know only too well, as evidenced by the persistently long queue outside the shop, which at times has over 60 waiting customers and stretches to the next block, despite the rather out-of-the-way location of the restaurant on a back alley off Tianjin Street. The dilemma of this shop is that for tourists (like us), the only way we can easily find it is by locating…