@EUCommission I can recommend borscht with dumplings (barszcz z uszkami) and kutia (which you listed as kūčia). I'd add other Christmas Eve food, like fish soup, mushroom soup, cabbage with mushrooms as a dish of its own, as pierogi stuffing or with square pasta (łazanki). Add kompot (sweet boiled fruit drink) and poppy seed roll (makowiec) to that.