Founded in 1837 and still going strong, Tenyasu specialises in tsukudani, a kind of simmered and preserved food that’s been a staple of area residents since the Edo era. Around a dozen varieties are available here, with seaweed-based choices making up the majority, but we recommend the strongly flavoured, slightly sweet shrimp (pictured above). Prepare to pay around ¥600-¥800 for 100g – a reasonable price for eating like a true Edoite.