Śledzie w Sosie Kurkowym (Herring in Creamy Chanterelle Sauce)

Tender, milk-soaked Matjas herring fillets folded through a rich, cold sauce of wild chanterelle mushrooms and double cream.
Prep time 15m
Marinate 2h
Cook time 15m
Rest time 24h
Total 26h 30m
Yield
6
Per serving:
400 kcal
8g Carbs
11g Protein
36g Fat
Published: 04 August 2026
Last Updated: 07 September 2026

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Ingredients

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Kitchen Kit

  • Large Mixing Bowl
  • Kitchen Paper
  • Large Frying Pan
  • Glass Storage Container
  • Chopping Board
  • Chef's Knife
  • Wooden Spoon
  • Pestle and Mortar

Method

  1. Chuck the Matjas herring fillets into a large bowl and pour over the milk. Leave them to soak for 1 to 2 hours (taste a tiny piece after an hour to check the salt level) to strip out the aggressive cure. Drain them well, pat bone-dry with kitchen paper, and slice into 3cm bite-sized chunks. Set aside in the fridge.
  2. While the fish soaks, clean your chanterelles. Brush off any dirt—do not drown them in water. Tear larger mushrooms in half and keep the small ones whole.
  3. Heat the vegetable oil and unsalted butter in a wide frying pan over a medium heat until foaming. Tip in the diced white onions and sweat them down until they smile and turn translucent, about 5 minutes.
  4. Crank the heat slightly and chuck in the chanterelles. Let them fry and release their moisture. Keep cooking until the pan is steam dry and the mushrooms take on a bit of colour. Season with the salt—keep it strictly to the 1g specified, as the Matjas brings natural saltiness to the final dish—and a good bash of crushed black peppercorns.
  5. Deglaze the pan with the white wine vinegar, scraping up any fond, and let it bubble away completely.
  6. Pour in the double cream and turn the heat down to a low simmer. Let it bubble and reduce for 3 to 4 minutes until it comfortably coats the back of a spoon.
  7. Take the pan off the heat and let the sauce cool entirely to room temperature. This is a critical step; if you add hot sauce to the herring, you will cook the fish and ruin the texture.
  8. Once the sauce is stone cold, fold in the chopped fresh dill and the sliced Matjas fillets. Toss gently but thoroughly to ensure every piece is heavily coated.
  9. Transfer the mixture to a glass container, cover tightly, and chuck in the fridge for at least 24 hours before serving to let the flavours marry.
Chef's Note & Storage
Fridge up to 5 days in a sealed glass container. The flavour improves significantly after the first 24 hours of resting. Do not serve warm.
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The Virgin Catch of the Baltic

Herring is the undisputed heavyweight champion of the Polish cold table, but using true Matjas fillets changes the game entirely. Caught before they spawn, these young herrings are extraordinarily rich in fat and possess a delicate, buttery texture that standard hard-salted fillets simply cannot match. Folding these intensely savoury morsels into a rich, earthy chanterelle cream elevates the dish into something distinctly luxurious. It bridges the gap between the bracing salinity of the sea and the deep, autumnal warmth of the Polish forest. This is not a dish to be rushed; it demands patience.

CHEF'S SECRET: Soak your Matjas fillets in cold milk rather than water. The lactic acid tenderises the fish even further and draws out the aggressive brine much more effectively, leaving you with a perfectly seasoned canvas for the heavy cream and mushrooms.

Foraging for Flavour

Chanterelles (kurki) bring a peppery, apricot-like aroma that cuts right through the richness of the double cream. The trick here is moisture management. Frying the mushrooms until they steam dry entirely concentrates their flavour and prevents your delicate cream sauce from turning into a split, watery mess. Once cooled, this sauce thickens around the Matjas, creating a velvety, scoopable texture perfect for piling onto dark rye bread.

Cook’s Notes & Discussion

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