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Loading...A classic Danish lunch that turns a humble slice of dense rye bread into a work of art. Buttered rugbrød is layered with briny pickled herring, sliced egg, crisp onion, and a generous shower of fresh dill for a cool, bright bite that pairs perfectly with aquavit or a cold pilsner.
Prep Time20 mins
Cook Time10 mins
Total Time30 mins
Servings4
Yield8 open-faced sandwiches (4 servings)
Nutrition Facts
Per serving (estimated)
- 490 kcalCalories
- 28 gFat
- 11 gSaturated Fat
- 36 gCarbs
- 5 gFiber
- 4 gSugar
- 22 gProtein
- 780 mgSodium
- 410 mgPotassium
- 95 mgCalcium
- 3.5 mgIron
- 9 mgVitamin C
- 220 mcgVitamin A
Ingredients
For the bread base
- 8 slices dense Danish-style rye bread (rugbrød), about 1/2 inch thick
- 4 tablespoons European-style unsalted butter, softened to room temperature
For the toppings
- 8 fillets pickled herring in wine or curry sauce, drained and cut into 1-inch pieces
- 2 large eggs
- 1 small red onion, sliced into paper-thin rings
- 2 tablespoons capers, drained and rinsed
- 4 tablespoons crème fraîche or full-fat sour cream
- 1/4 teaspoon flaky sea salt, plus more to finish
- Freshly ground black pepper to taste
For the garnish
- 2 tablespoons fresh dill fronds
- 1 lemon, cut into 8 thin wedges
- 4 radishes, trimmed and very thinly sliced
- 1 small handful of fresh chives, snipped
Directions
- Bring a small saucepan of water to a gentle boil. Lower the eggs in with a slotted spoon and cook for 9 minutes for fully set yolks. Transfer to a bowl of ice water, peel when cool, and slice into 1/4-inch rounds.
- Optional: lightly toast the rye slices for 1 minute so they hold their structure under the toppings without going soggy. Arrange on a large wooden board or four plates.
- Spread each slice of rye edge to edge with a generous layer of softened butter; this creates a moisture barrier between the bread and the fillings.
- Scatter a few rings of red onion over the butter, then pile the drained herring pieces in a loose mound in the center of each slice.
- Fan 4 to 5 egg slices over the herring and tuck a couple of radish slices next to the egg for color and crunch.
- Spoon a small dollop of crème fraîche across each sandwich and sprinkle with the capers so they peek through the cream.
- Garnish each sandwich with a sprig of dill, a scatter of chives, a pinch of flaky sea salt, and a few grinds of black pepper. Tuck a lemon wedge onto the side of each plate.
- Serve immediately with cold aquavit, schnapps, or a crisp Danish lager. Eat with a knife and fork, cutting the open-faced sandwich into bite-sized pieces.
Cook’s Notes
- Always use real European-style cultured butter; margarine will weep into the rye and ruin the texture of the base.
- Pat the herring very dry on paper towels before plating so the buttered bread stays intact; a thin coat of butter is the only moisture barrier that matters.
- For variety, swap the herring for smoked salmon, spiced curried herring, or paper-thin roast beef with crispy onions and horseradish — the butter-and-rye formula stays the same.
- In Denmark, smørrebrød is eaten with a knife and fork, never picked up by hand; cut each bite across the toppings so they don't slide off the bread.
- Make-ahead tip: hard-boil the eggs and slice the onions up to a day ahead, but assemble the sandwiches no more than 10 minutes before serving to keep the bread from softening.
