Menchi Katsu Sando - Pork (ポークメンチカツサンド)

A freshly fried pork menchi katsu gives off steam the moment the sandwich is pulled open, and the smell is onion and browned pork fat with a faint sweetness from the frying oil. The patty is minced pork worked with chopped onion and just enough binder to hold a round, then coated in panko and fried until the panko shell turns the color of a paper bag. Pork carries enough fat to keep that interior loose and wet, so the first bite releases juice into the bread within a second or two. The fat is the sauce here, which is why the sandwich needs so little help from the bottle.

The bread has to be ready for that. Soft shokupan, crusts trimmed, takes the juice the way a sponge takes water, and a thin film of butter on the inner faces slows the soak long enough for the square to survive the walk from the counter. A brushed coat of tonkatsu sauce goes on top of the patty, and a pile of shredded cabbage, where a shop adds one, lays a cold crunch against the hot crust. Hurry the frying and the center stays pink and dull; fry too long and the pork dries to crumbs that spill out of the bite. Wait ten minutes and the shell goes soft and the sandwich turns heavy and damp.

Most people meet this sandwich at a neighborhood butcher. The glass case sits beside the register, trays of patties come out of the fryer in batches, and a paper bag with one or two sandwiches changes hands in under a minute. Shops that use pork in the mix often name the breed on a card, such as the Kouza pork that a popular Asakusa takeaway stall blends with beef in its patties. The sandwich then goes into a pocket for a train ride, a park bench or a desk lunch, eaten with both hands while the steam still fogs the wrapper. Around Tokyo the patty is called menchi katsu, and in Kansai the same thing goes by minchi katsu.

The shape of the patty decides how the sandwich eats. A thick, tall puck needs a wide mouth and leaves the corners of the bread bare, so cooks who sell it between slices tend to press it flatter and wider, close to the bread's own footprint, so that crust, meat and sauce arrive in every bite. At that thickness the pork is cooked through by the moment the crust browns, and the cut face shows a pale, finely packed crumb of meat with flecks of onion. A cook can add a core of cheese or fold in a spoonful of chopped vegetables, though the plain pork version is the one that lets the meat and the sauce talk to each other.

Sold hot at a butcher's counter or cooled in a convenience-store case, the sandwich sits in a long line of Japanese fried-cutlet sandwiches that run from loin tonkatsu to breaded fish and prawn. The menchi version is the most forgiving member of that line, because minced pork needs no tenderizing and no careful slicing, and a cook with a good grinder and a hot fryer can turn out dozens an hour. That ease is a large part of why the patty was a fixture of the yoshoku kitchen long before anyone put it between bread.

Origin and history

The minced cutlet belongs to Meiji-era yoshoku, the Western-style cooking that Tokyo restaurants adapted for Japanese diners in the decades after 1868. Rengatei, which opened in Ginza in 1895, is the restaurant most often credited with the dish, and Japanese food histories commonly place the first sale around 1897, when it was served as a minced-meat cutlet. Some accounts place the origin in Asakusa instead, and a separate account credits a butcher in Kobe in the early Showa years, so the claim to priority is contested. The wording "mince meat cutlet" is the usual explanation for how the name shortened to menchi katsu.

The sandwich is a later arrival. A patty that already sold hot from a fryer needed only two slices of bread and a sheet of paper to become a lunch, and the butcher-counter pork version follows that logic. No record names the first shop to wrap one, but the cutlet it wraps has a Ginza address, and the bread has been the easy part ever since.

Rengatei opened in Ginza in 1895, and the minced-meat cutlet credited to its kitchen around 1897 is still the dish that every butcher-counter patty and every menchi sandwich descends from.