Rupjmaize (Latvian Dark Rye Bread)

About This Recipe

Rupjmaize — literally "coarse bread" — is the dark, slow-fermented rye loaf that has anchored Latvian tables for over a thousand years. Made from coarsely milled rye flour, a long sourdough leaven, scalded grains, caraway, and a touch of malt or honey, it is dense, faintly sweet, and tangy in the way only properly fermented rye can be. A traditional rupjmaize bake takes two days: a stiff rye sourdough is built up, the dough is then scalded with hot water to release the rye's natural sugars, fermented overnight, and finally baked in a hot oven for nearly two hours. The bread keeps for weeks, the flavor deepens daily, and a heel of buttered rupjmaize with a slice of smoked sprat is more or less the official Latvian afternoon snack.

Ingredients

Serves 12

• 100 gactive rye sourdough starter (100% hydration)
• 550 gcoarsely milled dark rye flour
• 150 gfine rye flour
• 450 mlboiling water, for scalding
• 200 mlwarm water, for the final dough
• 2 tbspdark malt syrup or molasses
• 1 tbsphoney
• 12 gfine salt
• 1 tbspcaraway seeds, lightly crushed
• 1 tspcoriander seeds, lightly crushed (optional)
• extra rye flour for shaping

Instructions

1. 1

   Scald the rye (evening)

   In a heatproof bowl, mix 250 g of the coarse rye flour with the boiling water until a thick, smooth paste forms. Cover and let cool to lukewarm — this releases the rye's natural sugars and is what gives rupjmaize its sweetness.

   The scald is the soul of authentic dark rye. Skipping it gives you a sour, flat bread; doing it properly yields the characteristic deep, malty flavor.

2. 2

   Build the leaven

   Stir the sourdough starter and malt syrup into the cooled scald. Cover and ferment 10–12 hours at warm room temperature (24–26°C) until visibly bubbly and smelling sharp and beery.

3. 3

   Make the dough (morning)

   Add the remaining 300 g coarse rye, 150 g fine rye, warm water, honey, salt, caraway, and coriander to the fermented leaven. Mix with a sturdy spoon for 6 minutes — rye dough is more like a thick paste than a kneadable bread dough.

4. 4

   First rise

   Cover the dough and rest 2–3 hours at warm room temperature until it puffs and shows small bubbles on the surface. It won't rise dramatically — rye never does.

5. 5

   Shape

   Wet your hands with cold water. Tip the dough onto a heavily rye-floured surface and shape into a long oval loaf, smoothing the surface with wet hands. Transfer to a parchment-lined baking tray.

6. 6

   Final proof

   Dust the loaf with rye flour, cover with a damp towel, and proof 60–90 minutes until the surface develops cracks.

7. 7

   Bake

   Heat oven to 240°C with a tray on the bottom rack. Slide the loaf in and pour 200 ml hot water into the bottom tray for steam. Bake 15 minutes at 240°C, then lower to 180°C and bake another 75–90 minutes, until the internal temperature reads 96°C.

8. 8

   Cool fully

   Brush the hot crust with a little water for shine, then cool the loaf completely on a wire rack — at least 12 hours — before slicing. Rye is gummy when warm; the texture and flavor only resolve after a full overnight rest.

Variations

• •

  Saldskābā maize: add 4 tbsp extra molasses for the famous Latvian sweet-and-sour rye, traditionally baked round.

• •

  Add 100 g sunflower seeds or 50 g chopped dried fruit to the dough for celebratory loaves.

• •

  Replace 50 g of the rye flour with whole spelt for a slightly lighter crumb (less traditional, but holds well).

Storage

Wrap in a clean linen cloth and store at room temperature up to 10 days — rupjmaize actively improves over the first week. Refrigerate up to 3 weeks. Slice cold and toast for the best texture.

Frequently Asked Questions