Żurek is an amazing Polish soup made with white sausage, smoked meat, and sour liquid made from fermented rye flour.

Żurek is a traditional, sour soup mainly prepared during Easter. (in Polish)

An idea for a traditional Easter dish from Poland: "white Zurek" (in German)

Experimenting with idea with one of the most popular Polish soups, using the fermented flour starter. Sour and delicious.