Jajka w Sosie Tatarskim (Eggs in Polish Tartar Sauce)

Perfectly jammy-centred eggs nestled in a sharp, chunky tartar sauce packed with sour brined cucumbers, brined capers, and marinated mushrooms.
Prep time 20m
Cook time 25m
Rest time 30m
Total 1h 15m
Yield
4
Per serving:
566 kcal
9g Carbs
14g Protein
54g Fat
Published: 02 September 2026
Last Updated: 07 September 2026

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Kitchen Kit

  • Large Saucepan
  • Slotted Spoon
  • Mixing Bowl
  • Chef's Knife
  • Chopping Board
  • Whisk
  • Silicone spatula
  • Large Bowl

Method

  1. Pour the water into a large saucepan and bring it to a rolling boil over a high heat. This volume will take about 15 minutes to reach a vigorous boil.
  2. Once boiling, gently lower the eggs into the water using a slotted spoon. Set a timer for exactly 8 minutes and 30 seconds for a yolk that is set but still beautifully creamy in the centre.
  3. While the eggs are boiling, prepare an ice bath in a large bowl. As soon as the timer goes off, fish the eggs out and plunge them straight into the icy water to halt the cooking process. Leave them there for at least 10 minutes.
  4. Finely dice the fermented cucumbers, marinated mushrooms, red onion, and thoroughly drained capers. You want the pieces to be uniform and small enough to suspend in the sauce without overwhelming it. Finely chop the fresh dill and chives.
  5. In a mixing bowl, fold together the mayonnaise, sour cream, and Dijon mustard until smooth.
  6. Chuck the diced vegetables, capers, and chopped herbs into the bowl. Squeeze in the lemon juice.
  7. Because the fermented cucumbers and brined capers bring a lot of hidden salt, only add the measured salt now, along with a heavy crack of black pepper. Stir vigorously to combine. If you have the time, let the sauce rest in the fridge for 30 minutes to allow the flavours to marry.
  8. Tap the cooled eggs on the counter to crack the shells, peel them carefully, and slice them in half lengthwise.
  9. To serve, spoon a generous, thick bed of the tartar sauce onto four serving plates or one large platter. Nestle four egg halves (two whole eggs) per serving into the sauce, yolk side up. Garnish with a final scatter of fresh dill or chives.
Chef's Note & Storage
Fridge 2 days. Store the eggs and sauce in an airtight container. The sauce may release a little liquid overnight due to the cucumbers; simply give it a quick stir before serving.
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The Polish Party Staple

Whenever there is a gathering in Poland—be it Easter, a namesake day, or just a heavy Friday night—you will find Jajka w sosie tatarskim anchoring the zimna płyta (cold buffet). It is a masterclass in contrasts: the rich, creamy subtlety of a perfectly boiled egg set against the sharp, acidic punch of a chunky sauce. For this to work, we absolutely demand ogórki kiszone (naturally fermented cucumbers in a salt brine, not sweet vinegar pickles) for that authentic, earthy lactic tang. As for the capers, use those packed in brine rather than harsh vinegar, and ensure they are thoroughly drained so they do not water down the mayonnaise.

CHEF'S SECRET: The texture of your tartar sauce dictates the success of this dish. You must hand-dice the fermented cucumbers, onions, and mushrooms into a precise, uniform brunoise (tiny cubes). Never use a food processor—it will release too much liquid and turn your majestic sauce into a watery, unappetising mush.

The Perfect Boil

The tragedy of the overcooked egg—marked by that sulfurous, chalky grey ring around the yolk—is easily avoided. We want the whites firm enough to handle, but the yolk must remain slightly jammy and vibrant in the centre. This requires a precise 8-and-a-half-minute boil, followed immediately by an aggressive ice bath to halt the residual cooking. The cold shock also pulls the membrane away from the shell, making peeling a breeze. This recipe scales it up to a proper portion: two whole eggs per person, demanding a generous bed of sharp tartar sauce.

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