Śledź po kaszubsku
Kashubian fishing families along the Baltic coast and the lakes near Kartuzy always kept a crock of herring in the cellar, and this layered version, with a thick sweet-and-sour sauce of slow-fried onion and tomato, is now a fixture of the Christmas Eve table across Pomerania. Mild salted fillets sit between spoonfuls of the soft, glossy sauce, and after a night in the fridge the two flavours merge into something savoury, tangy and gently spiced. Eat it cold with boiled potatoes or rye bread. Herring like this is cured but never cooked, so buy ready-salted or matjes fillets from a good fishmonger, keep them chilled, and note it is not for pregnant women, young children or anyone with a weakened immune system. Pouring the sauce on while hot is a mistake: it partly cooks the fish and turns it grey and soft. Chef's tip: taste a corner of a fillet before soaking; mild matjes need only a short rinse, while barrel-salted herring needs hours.
























