This Danish rye bread — rugbrød — is dense, dark and deeply flavored, naturally leavened with a rye sourdough and studded with whole rye berries. It’s the wholesome, high-fiber loaf behind classic Scandinavian smørrebrød, and it comes together in one bowl with no kneading. Here’s how I bake it at home.

Danish Rye Bread (Rugbrød)

A dense, deeply flavored Danish rye bread — naturally leavened with rye sourdough, studded with whole rye berries and baked in a tin.

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Prep Time 20

Cook Time 1 20

Proofing 6

Total Time 7 40

Servings: 1 loaf

Course: Bread, Breakfast

Cuisine: Danish, Nordic, Scandinavian

Ingredients Equipment Method Notes

Ingredients

100 g whole rye berries (~½ cup) | soak overnight, then bring to a boil; if still hard, simmer 5–10 minutes, then drain
400 g sifted rye flour (~3⅓ cups) | svedjerug (Nordic heritage rye) if you can find it, or any good rye flour
4 dl water (~1½ cups) | dough should be wet and scoopable
200 g active rye sourdough starter (~scant 1 cup) | fed with rye flour
20 g malt flour or liquid malt extract (~2 tbsp) | for color and deep, malty flavor
15 g fine salt (~1 tbsp)

Equipment

Digital kitchen scale | Rye is a bread you bake by weight — cup measures are too rough for a wet rye dough.
Stand mixer | Mixes the wet, sticky rye dough on low in a minute or two.
Danish dough whisk | If you'd rather mix by hand, this handles a wet rye dough better than a spoon — cheap and endlessly useful.
Pullman loaf pan | Gives rugbrød its classic dense, square shape and an even bake; a lidded Pullman pan is ideal.
Bench scraper | For scraping the sticky dough cleanly into the pan.

Method

The night before, cover the rye berries with cold water and soak overnight. In the morning, bring them to a boil — if they're still hard after that, let them simmer for 5–10 minutes until tender. Drain and cool before mixing.
In a stand mixer fitted with the paddle, combine the rye flour, water, sourdough starter, malt, salt and drained rye berries. Mix on low for a minute or two until evenly combined — this is a wet, sticky dough, closer to a thick batter than a kneadable one. That's exactly right for rye. (No mixer? A Danish dough whisk does the job by hand.)
Scrape the dough into a greased or lined loaf pan (a Pullman pan is ideal). Wet the back of a spoon or your hand and smooth the top. Cover with a damp towel or plastic wrap.
Proof at room temperature for 4–8 hours, until roughly doubled and the surface looks domed and dotted with small holes. For a tangier crumb, proof in the fridge overnight instead.
Bake at 180°C (350°F) for 1 hour 20 minutes. It's done when the internal temperature reaches about 98°C (208°F) and the loaf sounds hollow.
Turn out onto a rack and cool completely — then wait before slicing (see notes).

Notes

Chef’s tip — don’t slice it warm. Rye needs time for its starch to set. Cool the loaf fully, wrap it, and rest it at least 12–24 hours before cutting. Sliced too early, rye turns gummy; rested, it slices thin and clean, and the flavor deepens over 2–3 days. Bake by weight for consistent results, rye dough is unforgiving of guesswork. Hydration: rye is thirsty. The dough should be wet and scoopable, not stiff. If it feels stiff, add a splash more water.

What makes rye bread different from wheat

If you’ve only baked wheat bread, rye will surprise you. Rye flour has very little of the gluten that lets wheat dough stretch and trap air, so there’s no kneading and no windowpane test here — in fact, working it hard does nothing. Instead of a smooth, springy ball, you’re aiming for a wet, sticky dough closer to a thick batter. That’s not a mistake; it’s exactly what gives rugbrød its close, moist crumb. Once you stop expecting it to behave like wheat, rye becomes one of the easiest breads there is: mix, scoop, proof, bake.

The rye sourdough that does the work

This loaf rises on a rye sourdough starter — no commercial yeast. Rye ferments faster and more vigorously than wheat, so a healthy starter fed with rye flour will power the whole loaf. If you don’t have one yet, a rye starter is made exactly like a regular sourdough starter — just use rye flour instead of wheat. Feed yours a few hours ahead so it’s active and bubbly when you mix. The long, slow fermentation is what develops that signature tang and helps the bread keep for days. If you like a sharper, more sour flavor, this is the lever to pull: proof it cold overnight instead of at room temperature.

Why soak the rye berries

The whole rye berries are what give rugbrød its texture — those little chewy, nutty bites running through each slice. But they’re hard, so they need an overnight soak to soften before they go into the dough. If they still feel firm in the morning, a quick boil and drain finishes the job. Skip the soak and you’ll get hard grains in a finished loaf; do it and they turn tender and pleasantly chewy.

The one rule for rye bread: don’t slice it warm

Rye isn’t like wheat bread. The crumb keeps setting as the loaf cools and rests — not while it bakes. Cut into it warm and it drags and turns gummy. Cool it completely, wrap it, and give it at least a day. It slices cleaner and tastes better on day two and three, which is exactly why rugbrød is a make-ahead bread in every Scandinavian kitchen.

How to serve Danish rye bread

Rugbrød is the foundation of smørrebrød, the Danish open-faced sandwich. Slice it thin — a sharp knife and a fully rested loaf make this easy — and pile it high: cured herring, cold cuts, a hard-boiled egg with a curl of mayonnaise, or simply good butter and a slice of cheese. It’s a bread built for toppings, and its dense, high-fiber crumb holds up to anything you put on it.

Storing your rugbrød

This is a loaf that rewards patience and keeps beautifully. Wrapped well at room temperature, it stays good for the best part of a week — and genuinely improves over the first few days as the flavor deepens. It also freezes well: slice it first, then you can pull out exactly what you need and toast it straight from frozen.

Make it your own

Many Danish rugbrød are packed with seeds — fold in a handful of sunflower, flax or pumpkin seeds, or swap some of the rye berries for cracked rye. A splash of dark beer in place of some of the water gives an even maltier depth.

More Nordic bakes you’ll love

Whole grain sourdough bread

Sourdough rolls

Sourdough baguettes

Danish Rye Bread (Rugbrød)