Sunday lunch in Upper Silesia has three parts. The roulade is a thin slice of beef, pounded, spread with mustard and rolled around bacon, pickled cucumber and onion; the roll is tied, browned and slowly cooked until it forms a dark sauce. The kluski śląskie are dumplings made from boiled potato and potato starch, flattened with a small depression in the center to hold the sauce. Modra kapusta is red cabbage sautéed with onion, a little sugar and salt, sometimes with bacon.
After the Second World War, the roulade with kluski and cabbage, usually preceded by chicken broth with noodles, became the typical Sunday lunch of Upper Silesia, and many households still serve it almost as a duty. The roulade was prepared on Saturday night for Sunday and also appears at weddings, baptisms and other family celebrations. The kluski originated in times of scarcity, when potato was the staple; in the region they are also called gumiklyjzy.
Kluski białe śląskie have been on the Silesian Voivodeship’s List of Traditional Products since 2006. There are legends about the origin of the kluski, such as the story that the women of Racibórz hurled them at the Mongols in 1241; these are regional tales, not documented facts. In Katowice and other towns of Upper Silesia, the dish is served in regional cooking restaurants.