Fukagawa-meshi (Tokyo clam and miso rice)
Clam diggers on the shallow shores of Fukagawa, in what is now Koto ward in eastern Tokyo, used to make a fast meal by simmering fresh asari clams with leek in miso soup and tipping it over rice. The bay has long since been built over, but small restaurants near Monzen-Nakacho and Kiyosumi-Shirakawa still serve it in bowls or lacquered boxes, and it is a well-known station lunch box. Some cooks steam the clams into the rice instead; this is the older poured-over style. It is savoury, briny and very quick. Chef's tip: steam the clams open first and take them out of the pot, then return them only for the last 30 seconds, so they stay plump instead of shrinking into rubbery nubs.



