Osaka's yatai culture began in the Edo period, when itinerant vendors pushed wooden carts through theatre districts, frying batter and grilling skewers for audiences leaving kabuki performances. By the 1920s, Shinsekai had become the city's working-class entertainment quarter, its narrow lanes dense with kushikatsu stands where diners sat elbow-to-elbow at zinc counters. The double-frying prohibition — sauce once, never twice — originated here as a hygiene compact among postwar vendors, and the rule still governs every kushikatsu-ya in the district. Dotonbori's neon corridor emerged in parallel, its riverfront promenade anchored by the mechanical crab that has rotated above Kani Dōraku since 1960. The neighbourhood's takoyaki lineage traces to a single stall opened in 1935 by Tomekichi Endo, who adapted akashiyaki by adding cabbage and ginger, then served the spheres in disposable wooden boats. Today, an osaka food tour night threads these two geographies, moving from Shinsekai's retro lantern glow to Dotonbori's digital glare. The format reflects Osaka's kuidaore philosophy — "eat until you drop" — a term coined in the 1920s to describe the city's competitive generosity with food. Guides are typically Osaka natives who grew up in Naniwa Ward or Chūō, their knowledge rooted in childhood routines rather than culinary training. They navigate by landmark rather than map: the Tsūtenkaku Tower, the Glico Running Man, the Hozenji Temple alcove where diners pause to ladle water over a moss-covered Fudō Myōō statue before entering nearby izakayas. Evening is the structural hour. Yatai operators arrive at dusk to prep charcoal grills and batter stations; by 18:00 the first skewers are frying. The Osaka evening food tour format typically spans two to three hours, with seven to seventeen tastings depending on route density. Portions are designed for grazing — two takoyaki per guest, one kushikatsu skewer, a shared plate of okonomiyaki — so the cumulative intake mirrors a full kaiseki sequence. The pedagogical layer matters as much as the food itself: why Kansai okonomiyaki is griddled in a single pour while Hiroshima-style is layered, why doteyaki beef tendon simmers for six hours in miso, why the golden broth in Osaka udon is paler and sweeter than Tokyo's dark tsuyu. These are oral-tradition details, passed cook to cook, now codified in the two-hour osaka food tour night walk that has become the city's most efficient vector for edible context.