Takoyaki
Walk through Dotonbori in Osaka on any evening and you'll see cooks flicking dozens of batter balls around a cast-iron plate with metal picks. Stalls in the city have sold them since the 1930s, and they turn up at every summer festival, eaten from a paper boat with a cocktail stick. The outside is crisp, the inside almost molten, with a chewy piece of octopus at the centre. You need a takoyaki pan, either a stovetop cast-iron one or an electric plate. Chef's tip: fill the cups right to the top and let the batter flood across the whole plate, as the overflow is what you fold in to make each ball round.



