Reuben

In a row of older pavilions on ulica Księdza Jerzego Popiełuszki, beside Hala Marymoncka in Warsaw's Żoliborz district, a restaurant called Ruben (the Polish spelling of the sandwich) builds its namesake from wheat bread, pastrami, Dijon mayonnaise, white sauerkraut, fried Gruyère and homemade pickles. Cured beef, cabbage and melted cheese sit between two slices, which makes it a Reuben whatever the parts are. The sauerkraut is kapusta kiszona, the pale, salty-sour cabbage Poles put into bigos and onto sausages, so the acid that cuts the beef tastes familiar before the pastrami has registered. The menu around it is smash burgers, loaded fries and a Philly cheesesteak, an American-diner list written in Polish.

The pastrami carries the sandwich, and the Ruben kitchens cure and cook it themselves. At the Mokotów restaurant the stack is described as 300 g of meat, enough that the slices stay thick and hold their shape, with a hot, peppery, coriander-flecked crust that gives way to beef tender enough to fall apart on the tongue. Warm pastrami smells of smoke and cracked pepper, and its fat softens as the sandwich sits closed, basting the cabbage above it. That much cured beef flattens the palate by the third bite, and the sharp kraut resets it each time.

The Żoliborz build adds a pan-fried slab of Gruyère. The edges brown and crackle, the fat weeps and crisps, and the smell turns nutty and toasted, close to roasted hazelnut. Against the soft pastrami and bread it leaves a thin lacy shatter, followed by the long chew of the meat, while the Dijon mayonnaise lays a mustard bite that stays in the nose and the cheese stretches between the halves when the sandwich is lifted apart. Eaten hot, the fried edge is the loudest thing in the bite. The homemade pickles come cold against the hot filling, and their vinegar sharpness cuts through the grease.

Wheat slices (pszenny) toast to a pale gold and stay soft inside, which lets the pastrami's pepper and the cabbage's sourness come through undimmed. The bread has a lot of wet to hold. Mayonnaise sits on the inner faces, hot meat leaks fat, and the cabbage brings brine, so the toast needs a crisp surface to keep the middle from going to paste. Sauerkraut drained loosely turns the bottom slice grey and limp; squeezed too dry, it gives only a sour tangle with no juice. The kitchen sends it out hot, to be eaten with both hands and a napkin close by.

Polish home cooks make the sandwich too. Recipe writers there treat pastrami as the defining ingredient, call for yellow cheese or Swiss, dress it with a Russian or Thousand Island-style sauce, and sometimes swap in coleslaw or sautéed sweet cabbage for the sauerkraut. The Mokotów menu lists Russian dressing, Swiss cheese and sauerkraut, and the Żoliborz one lists Dijon mayonnaise and Gruyère. The house pastrami is the thing both rooms share, and each menu describes the sandwich around it. A cook working from either card is assembling the same layers: warm cured beef, something sharp from the cabbage, melted cheese holding the stack together, a sauce for moisture and a toasted slice at the top and bottom.

Two Warsaw dining rooms, 2024

The Reuben began in the United States, with Omaha and New York each claiming it, and its Polish record starts on Warsaw restaurant menus in 2024. The Żoliborz Ruben, at Popiełuszki 21, was serving the sandwich by June 2024, and its menu already named wheat bread, pastrami, Dijon mayo, white sauerkraut, fried Gruyère and homemade pickles. Listings disagree on whether that restaurant opened in 2023 or 2024; a later article puts the opening in March. The June 2024 menu is the earliest printed record of the sandwich in this room, and it already lists all six components.

The second restaurant, Ruben Grill & Deli at Obrzeżna 3 in Mokotów, is a separate room with its own card. It is a grill restaurant built for sharing plates, with tartare, sea bass ceviche and a Rossini tenderloin alongside the sandwich. Chef Maciej Wójcik is the name attached to the restaurants in listings, and the pastrami is billed as made in house.

Ruben Grill & Deli opened at the end of November 2024 and was written up in mid-December of that year. Its Ruben is built on 300 g of the kitchen's own pastrami and is listed with Russian dressing and Swiss cheese, and the stack is sliced thick.