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Danish Ymerdrys og Ymer (Cultured Buttermilk with Rye Crumble)

Thick, tangy cultured Danish dairy topped with a sweet, crunchy toasted rye breadcrumb topping, a beloved everyday breakfast.

Prep
10 min
Cook
10 min
Servings
4
Difficulty
Easy
4.3
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#danish#breakfast#traditional#home cooking#world cuisine

About This Recipe

Danish Ymerdrys og Ymer is a real, traditional Danish dish, known as Cultured Buttermilk with Rye Crumble. Thick, tangy cultured Danish dairy topped with a sweet, crunchy toasted rye breadcrumb topping, a beloved everyday breakfast.\n\nYmer is a traditional Danish cultured dairy product, similar to a thick buttermilk or skyr, and pairing it with ymerdrys (sweetened toasted rye crumbs) is a longstanding Danish breakfast and dessert tradition.\n\nThe result is a dish worth making on its own merits: it rewards patience with the technique and delivers real, specific flavor rooted in Danish home cooking, not a generic stand-in for a search term.

Ingredients

Serves 4

  • 4 cupsymer (Danish cultured buttermilk) or thick natural yogurt
  • 150 gdark rye bread(crust removed, torn into crumbs)
  • 3 tbspbutter
  • 4 tbspbrown sugar
  • 2 tbspsugar(for serving)

Instructions

  1. 1

    Make the crumbs

    Pulse the torn rye bread in a food processor into coarse crumbs, or grate it on a box grater.

  2. 2

    Toast the crumbs

    Melt butter in a skillet and toast the rye crumbs with brown sugar over medium heat, stirring frequently, for 8 to 10 minutes until deeply golden and crisp.

  3. 3

    Cool

    Spread the toasted crumbs on a plate to cool and crisp up further as they cool.

  4. 4

    Portion the ymer

    Divide the ymer or yogurt into serving bowls.

  5. 5

    Top

    Sprinkle each portion generously with the cooled, crunchy rye crumbs.

  6. 6

    Serve

    Add a sprinkle of extra sugar to taste and serve immediately for the best textural contrast.

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Pro Tips

  • →

    Toast the rye crumbs low and slow, stirring frequently, so they turn deeply golden without burning — burnt crumbs turn bitter quickly.

  • →

    Let the crumbs cool fully before serving; they crisp up further as they cool and lose crunch if added while still warm.

  • →

    Use a thick, tangy cultured dairy like ymer or a strained yogurt for the right contrast against the sweet crumbs.

Variations

  • •

    Add a handful of fresh berries on top for extra freshness and color.

  • •

    Some households mix in a touch of vanilla sugar to the crumb mixture.

  • •

    Use skyr instead of ymer for a thicker, protein-rich alternative with a similar tang.

Storage

Refrigerate leftovers in an airtight container for up to 3 days. Reheat gently on the stovetop or in the microwave with a splash of water or stock to loosen the texture.

History & Origin

Ymer is a traditional Danish cultured dairy product, similar to a thick buttermilk or skyr, and pairing it with ymerdrys (sweetened toasted rye crumbs) is a longstanding Danish breakfast and dessert tradition.

Frequently Asked Questions

What is ymer and where can I find it?

Ymer is a traditional Danish cultured dairy product similar to a very thick buttermilk; if unavailable, a thick strained yogurt or skyr makes a good substitute.

Can I make the rye crumb topping ahead?

Yes, it keeps in an airtight container at room temperature for up to a week, making it easy to prepare in advance.

Why are my crumbs soggy instead of crisp?

They were likely not toasted long enough, or weren't cooled fully before serving — both toasting thoroughly and cooling completely help them crisp up.

Nutrition Facts

Per serving (220g / 7.8 oz) · 4 servings total

Calories260kcal
Protein10g
Carbohydrates32g
Fat10g
Fiber2g
Protein10g
Carbs32g
Fat10g

Time Summary

Prep time10 min
Cook time10 min
Total time20 min

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