The Second Piece of Bread Is a Lie
Let me make the structural argument first, before the cultural one.
A closed sandwich hides its contents. You can infer the build from the menu or the label, but you cannot see it. You eat it partly by trust. The top slice of bread is a lid, a concealment, a structural necessity that serves the function of keeping the filling contained while you move it from counter to mouth.
An open-faced sandwich rejects this. Everything is visible. Every element earns its position on the bread because there's nowhere to hide. The smear of butter has to be applied correctly. The pickled herring has to be laid with attention. The sprig of dill goes where it makes the sandwich look complete, not just where it falls. The open-faced format is an aesthetic constraint that produces better-looking food almost automatically, because the maker cannot cheat.
This is the philosophical core of smørrebrød — the Danish open-faced sandwich tradition that is older than most European sandwich cultures, more codified than most, and more underrated in the English-speaking world than almost anything in food.
The Smørrebrød Tradition
Smørrebrød (literally "butter and bread") originated as Danish farm and laborer food in the nineteenth century — a way to make a meal from rugbrød (dense, sour, dark rye bread), butter, and whatever proteins and pickled items were available. It was practical before it was beautiful.
The bread matters enormously and is non-negotiable in the traditional form. Danish rugbrød is made from whole rye berries, rye flour, water, and a sourdough culture. It ferments for a long time. The result is a dense, slightly sour, deeply flavored bread with a tight crumb that doesn't crumble under the weight of heavy toppings. It's also somewhat small — the typical smørrebrød piece is about the size of a playing card — which means the bread-to-filling ratio inverts compared to a conventional sandwich. You're eating more filling than bread. The bread is a platform, not a pillar.
Butter goes on first, always. Not as a condiment but as a structural layer — the fat creates a barrier between the bread and the wet toppings, preventing sogginess. Danish butter, made from cultured cream, has a slight tang that adds to the flavor rather than just greasing the surface.
Then the toppings, assembled with care:
Sild med dild — pickled herring with dill. The herring is brined, sometimes marinated in onion and white wine, sometimes in curry (a Danish innovation that sounds wrong and is excellent). The dill is non-negotiable. Served cold, often with a thin slice of boiled egg and a few red onion rings. This is the most classic smørrebrød and the entry point for the uninitiated.
Roast beef with remoulade — thin-sliced cold roast beef, laid in overlapping layers, with a smear of Danish remoulade (a mustard-and-mayo-based sauce with finely chopped pickles and capers) and crispy fried onions scattered on top. The fried onions provide the textural contrast that the soft beef and creamy remoulade need.
Leverpostej — liver pâté, usually pork, made with more fat than French pâtés and spread thickly. Topped with pickled beets and perhaps a few cucumber slices. The earthiness of the liver, the sweetness and acid of the beets, the grassiness of the cucumber — this combination works completely.
Japan and the Open Toast Tradition
Danish smørrebrød doesn't have an equivalent in Japan by history or cultural contact, but Japanese food culture has developed its own parallel open-faced traditions that are worth considering alongside it.
Ogura toast — thick shokupan bread, toasted, buttered, with a generous smear of ogura an (sweet red bean paste), sometimes with a drizzle of fresh cream — is a morning staple at the Komeda's Coffee chain throughout the Nagoya region and beyond. It is a breakfast that is also a dessert. The open-faced format here is essential: you need to see the red-bean paste to understand what you're about to eat, and the visual contrast of dark paste on cream-colored toast is part of the appeal.
Fruit sando halves, the Japanese take on fruit sandwiches using shokupan (Japanese milk bread), fresh cream, and seasonal fruit, are often displayed cut-face-forward to show the arrangement of fruit inside. This is technically a closed sandwich that's displayed open — a middle case that illustrates how much Japanese food culture cares about the revealed cross-section.
The American Tartine Revival
The word tartine is French for an open-faced sandwich, traditionally buttered bread with toppings. In American food culture, particularly in San Francisco, it was adopted and expanded in the 2010s into a broader concept of open-faced toast with sophisticated toppings — the avocado toast phenomenon being the most visible expression.
Chad Robertson's Tartine Bakery in San Francisco used the word in its name before avocado toast existed, and the connection is real: the best open-faced preparations in the American tradition start with exceptional bread that can support toppings without becoming irrelevant. The bread is the point as much as the topping.
Copenhagen Elevates It
In contemporary Copenhagen, smørrebrød has been lifted into fine dining in ways that feel neither pretentious nor disconnected from the tradition. Restaurants like Aamanns and Schønnemann serve smørrebrød that costs thirty to forty Danish kroner per piece — roughly five dollars — with a level of craft applied to each piece that exceeds most plated restaurant dishes.
The approach: take the traditional combinations and make every component from scratch at the highest possible quality. The herring is pickled in-house. The remoulade is made daily. The rugbrød is baked fresh. The fried onions are done to order. The result is food that is simultaneously humble in origin and extraordinary in execution — exactly the combination that produces the most satisfying eating.
The open-faced format, it turns out, is not a limitation. It's an invitation to care more about every visible element. When there's nowhere to hide, the best makers don't hide anything.