National Dish Poland: Śledzie po kaszubsku (Recipe)

In this article
Meet Śledzie po kaszubsku, a much-loved classic from the Baltic shores of northern Poland. These tender marinated herrings are steeped in a bright, aromatic marinade of vinegar, oil and warm spices, then left to mellow until every bite melts on the tongue. Whether you serve them as a starter or as the centrepiece of a festive buffet, they bring a genuine taste of coastal Kashubia to the table — simple to prepare, yet full of character.
About Śledzie po kaszubsku
Śledzie po kaszubsku is a traditional Polish dish especially treasured in the region of Kashubia. At its heart are marinated herrings, prized for their delicate texture and the fragrant marinade that surrounds them. The dish makes a wonderful appetiser or a standout addition to a celebratory spread. It is the combination of fresh ingredients and regional spices that turns it into a real treat for anyone who loves Polish cuisine.
Ingredients (serves 1–2)
- 200 g herring fillets
- 1 small onion
- 2 tablespoons vinegar
- 3 tablespoons oil (such as sunflower oil)
- 1 teaspoon mustard seeds
- 1 teaspoon sugar
- 1 bay leaf
- 1–2 peppercorns
- Salt to taste
Shopping for the ingredients
When shopping for Śledzie po kaszubsku, it is worth paying attention to the freshness of the herring. Ready-filleted herrings are ideal and can be found in a well-stocked fishmonger’s or supermarket. The remaining ingredients, such as onions and spices, are easy to source in any grocery shop. For the very best flavour, choose regional produce wherever you can.
Preparing the dish
Preparing Śledzie po kaszubsku is refreshingly simple and quick. First, the herrings should be rinsed thoroughly and left to drain. The onion is then cut into fine rings, which helps it distribute evenly through the marinade. These small steps are important for bringing out the flavours at their best.
Step-by-step instructions
- Cut the herring fillets into bite-sized pieces and place them in a bowl.
- Scatter the onion rings over the herring.
- In a separate container, combine the vinegar, oil, sugar, mustard seeds, bay leaf and peppercorns.
- Pour the marinade over the herring and onions, then mix everything together well.
- Season with salt to taste and cover the mixture.
- Leave the dish to marinate in the fridge for at least 24 hours so the flavours can develop.
Gluten-free / lactose-free version
Śledzie po kaszubsku is naturally gluten-free and lactose-free, as its main components — herring and vegetables — contain neither. That makes it an easy choice for anyone with an intolerance or allergy. When selecting the vinegar, it is sensible to reach for a certified gluten-free option to be sure the whole dish is suitable for everyone. This way the recipe stays a pleasure for all.
Tips for vegans and vegetarians
For vegans and vegetarians, Śledzie po kaszubsku can be adapted with ease. In place of herring, try marinated aubergine or seitan to achieve a similar effect. The marinade stays exactly the same and provides those characteristic aromas. This vegan variation is a lovely way to make the dish suitable for plant-based diets, much like a plate of Kiszone Ogorki alongside.
More tips and tricks
To get the most out of your Śledzie po kaszubsku, adjust the marinade to your own taste. A little garlic or some fresh herbs such as dill can add extra aroma. The way you handle the onion matters too: if you prefer a milder result, blanch the rings briefly before adding them. Try different versions until you strike exactly the balance you like.
Adapting the recipe to your taste
Śledzie po kaszubsku is easy to tailor to different preferences. Some people prefer their herrings marinated with more or less vinegar, while others favour a sweeter version. Experiment with the ingredients and discover what works best for you. The accompaniments can vary as well: offer fresh bread or crisp potatoes to round out the dish.
Ingredient substitutions
If you cannot find herrings, there are alternative fish that suit the recipe just as well. Mackerel or trout can be marinated in a similar way and lend the dish a different but equally delicious note — a natural cousin to something like Karp po żydowsku. The vinegar can be varied to taste too: balsamic brings a sweeter note, while white wine vinegar is a touch milder. Feel free to be creative and use whatever appeals to you most.
Drink pairing ideas
A range of drinks suits Śledzie po kaszubsku, depending on your taste and the occasion. A glass of Polish beer or a dry white wine sits beautifully with the flavour of the marinated herrings. If you prefer something alcohol-free, reach for a refreshing mineral water or a homemade lemonade. These pairings highlight the flavours of the dish and round off the culinary experience.
Serving and presentation ideas
An appealing presentation is the key to making Śledzie po kaszubsku even more tempting. Serve the marinated herrings in a decorative glass or on a stylish platter with fresh herbs. A few slices of lemon or a scattering of capers make an attractive garnish and bring out the colours on the plate. A thoughtful presentation invites everyone to dig in and turns the meal into a special moment at the table.
A bit of history
Śledzie po kaszubsku has a long tradition in Polish cuisine and reflects the culinary richness of the region of Kashubia. Herrings have been caught and prepared here for centuries, thanks to a coastal location abundant in fish. The marinade that envelops the fish is often a blend of regional spices, developed and refined over generations. Today the dish is a fixture of Polish celebrations and a symbol of the country’s rich food culture.
More recipe ideas
Summary: Śledzie po kaszubsku
In summary, Śledzie po kaszubsku is a delicious, tradition-rich dish that is ideal for all kinds of occasions. With fresh ingredients and simple preparation, it brings a touch of the Polish way of life to the table. Whether served as a starter or as a light main, the flavours of the marinade are a treat for the palate. Give it a try and let Polish cuisine win you over!



