Name: Kujawy Pierogi with Sauerkraut and Mushrooms (Kujawskie pierogi z kapustą i grzybami)
Prep time: 35 min
Cook time: 40 min
Total time: 105 min
Yield: about 36 medium pierogi
Cuisine: Polish
Ingredients: 500 g all-purpose wheat flour, plus a little for dusting; 1 l arge egg, beaten; 220 ml warm water, added gradually; you may not need every drop; 6 g fine salt; 15 ml neutral oil; 35 g commercially dried porcini or mixed edible forest mushrooms; 300 g refrigerated sauerkraut, drained weight; 70 g yellow onion, finely diced; 25 g unsalted butter; Up to 100 ml strained mushroom cooking liquid; 15 ml cold-pressed flaxseed oil; 1 g freshly ground black pepper; 80 g yellow onion, thinly sliced; 15 ml neutral oil; 4 l water; 8 g fine salt

A wide view of „Kujawy Pierogi with Sauerkraut and Mushrooms (Kujawskie pierogi z kapustą i grzybami)“ arranged on a table for serving.

Yield about 36 medium pierogi

Servings 6

Serving size 6 pierogi with sauerkraut-mushroom filling and fried onion

Prep time 35 minutes

Ingredients ↓

Recipe at a glance

Kujawy Pierogi with Sauerkraut and Mushrooms (Kujawskie pierogi z kapustą i grzybami)

Soft Polish half-moon dumplings with a dense, savoury filling of tangy sauerkraut and dried forest mushrooms, finished with golden fried onion.

Kujawskie pierogi z kapustą i grzybami are a regional Kujawy preparation of Poland’s beloved filled dumplings. The registered version is described as delicate, lightly salted, pale dough folded into half-moons around a dense, aromatic filling of sauerkraut and mushrooms. The dish is associated with holiday tables in Kujawy, including Christmas Eve.

This practical home recipe makes 36 medium pierogi. Dried mushrooms are rehydrated and cooked, then combined with slowly softened sauerkraut and onion. A little cold-pressed flaxseed oil goes into the filling off the heat, reflecting the regional recipe’s flavour, while the topping onion is fried separately. The registration establishes the dish’s regional identity and characteristics, not one exact household formula; cabbage-and-mushroom pierogi are also made in other parts of Poland.

For a tidy, tender result, keep the cooked filling moist but not wet, leave the edges of each dough round clean, and press out trapped air before sealing. Boil the dumplings in batches so they have room to move, then serve them hot with the golden onion topping.

Tips for success

Buy commercially packaged dried edible forest mushrooms from a reliable food shop. Do not use unidentified foraged mushrooms.
Strain the mushroom cooking liquid through a fine sieve or coffee filter to remove grit, then add it to the filling a little at a time.
Cook the sauerkraut until tender and reduce away excess moisture. A wet filling can make the dough seam slippery and cause pierogi to split.
Let the filling cool until just warm before shaping. Hot filling softens the dough and can make the edges harder to seal.
Add the water to the dough gradually. Flour absorbs differently, so stop when the dough is soft, smooth and no longer sticky.
Keep dough portions covered while you roll and fill the pierogi. Press out air pockets and keep filling off the sealing edge.
Boil in batches without crowding. Once the pierogi float, cook them briefly longer and cut one sample open to check the dough is cooked through.

Ingredients

Soft pierogi dough

500 g all-purpose wheat flour, plus a little for dusting
1 l arge egg, beaten
220 ml warm water, added gradually; you may not need every drop
6 g fine salt
15 ml neutral oil

Sauerkraut and forest-mushroom filling

35 g commercially dried porcini or mixed edible forest mushrooms
300 g refrigerated sauerkraut, drained weight
70 g yellow onion, finely diced
25 g unsalted butter
Up to 100 ml strained mushroom cooking liquid
15 ml cold-pressed flaxseed oil
1 g freshly ground black pepper

Fried onion topping

80 g yellow onion, thinly sliced
15 ml neutral oil

Boiling water

4 l water
8 g fine salt

Method

Directions

Soak and cook the mushroomsRinse the dried mushrooms briefly, cover them with hot water and soak for 30 minutes. Lift them out, rinse away any grit and chop them finely. Strain the soaking liquid through a fine sieve or coffee filter. Put the mushrooms in a small saucepan with enough strained liquid to cover and simmer gently for 15–20 minutes, until tender. Drain and reserve up to 100 ml of the cooking liquid.
Mix the doughWhile the mushrooms soak, stir the flour and 6 g salt together in a bowl. Add the beaten egg, neutral oil and most of the warm water. Mix, adding the remaining water gradually only as needed, then knead for 6–8 minutes until the dough is smooth, supple and no longer sticky. Cover it and let it rest while you prepare the filling.
Cook the fillingDrain and taste the sauerkraut. Rinse it briefly only if it is unusually salty or sharp, then squeeze it gently and chop it. Melt the butter in a saucepan over medium-low heat. Add the diced onion and cook for 5–7 minutes until soft but not browned. Stir in the sauerkraut and cooked mushrooms. Add up to 100 ml of strained mushroom cooking liquid a little at a time. Simmer uncovered for 15–20 minutes, stirring, until the cabbage is tender and the filling is moist but not wet. Season with black pepper and taste; the sauerkraut may not need more salt. Remove from the heat and stir in the flaxseed oil. Cool until just warm.
Shape the half-moonsDivide the dough into portions and keep the unused pieces covered. Roll one portion on a lightly floured surface to about 2 mm thick. Cut 7–8 cm rounds. Put about 1 level teaspoon of cool filling in the centre of each round, keeping the rim clean. Fold each round into a half-moon, press out trapped air and seal the edges firmly; crimp them if you like. Gather and re-roll the scraps once. Arrange the pierogi on a lightly floured tray without letting them touch.
Boil the pierogiBring 4 l water and 8 g salt to a boil in a wide pot. Add the pierogi in batches, leaving room for them to move, and stir gently once. When they float, continue boiling for about 2–3 minutes, until the dough looks tender and cooked through. Cut one sample open to check that the centre is hot and the dough is not raw. Lift the pierogi out with a slotted spoon and drain. Keep them warm without stacking them tightly.
Fry the topping onion and serveWhile the last batch cooks, heat the neutral oil in a skillet over medium heat. Add the sliced onion and fry for 7–9 minutes, stirring, until soft and golden. Spoon the onion and a little of its oil over the hot pierogi. Serve immediately.

Nutrition per serving

Energy430 kcal
Carbohydrate70 g
Protein12 g
Fat9 g
Fibre6 g
Sodium650 mg
Allergenswheat (gluten-containing cereal), egg

Estimated for one of six portions, or 6 pierogi with a share of the fried onion: These are approximate ingredient-based values, not laboratory analysis. Sauerkraut salt, the mushroom mix, dough trimming and the amount of topping oil that remains on the food can change the result. The estimate assumes 36 equal pierogi and six equal portions; salt left in the boiling water is not counted as consumed.

Serving, make-ahead, and storage: Serve six hot half-moon pierogi per person, topped with the fried onion. Their pale, soft dough should surround a compact, aromatic filling; keep extra filling or toppings off the plate so the mushroom and sauerkraut flavour remains clear.

Serving, make-ahead, and storage: You can cook the filling a day ahead and refrigerate it in a covered container. For a longer make-ahead option, freeze the uncooked shaped pierogi in a single layer until firm, then pack them airtight for up to 2–3 months for best quality. Boil them from frozen without thawing; add a few minutes and cut one open to confirm the centre is hot and the dough is cooked.

Serving, make-ahead, and storage: Serve cooked pierogi promptly or keep them at or above 60 °C. Refrigerate leftovers within two hours, or within one hour if the room is hotter than 32 °C. Store them in shallow covered containers at or below 4 °C and use within four days. Reheat thoroughly to 74 °C throughout: briefly simmer in water or broth, or pan-fry with a little oil until steaming hot in the centre. Freeze cooked portions airtight if you need to keep them longer, then thaw in the refrigerator.

Frequently asked questions

What makes these pierogi Kujawskie?

The registered regional dish is identified by its soft, lightly salted dough, half-moon shape and aromatic sauerkraut-and-mushroom filling. The registration is for the Kujawy product; similar fillings are also prepared elsewhere in Poland.

Can I use fresh mushrooms instead of dried?

Dried forest mushrooms provide the concentrated aroma associated with this filling and are used in the regional recipe. Fresh mushrooms contain more moisture and would change the filling, so use the dried edible mushrooms specified here.

Why should the filling be fairly dry?

Excess liquid can wet the dough edge and weaken the seal. Simmer the filling uncovered until it holds together, then let it cool before shaping.