Create authentic Polish white borsch (żurek) at home with Bacik’s traditional fermented rye sourdough starter. Made according to old-world recipes, this concentrate delivers the classic tangy flavor loved in Polish kitchens.
Just add water, smoked sausage, potatoes, garlic, and spices — and enjoy a warm, comforting bowl of traditional żurek.
Traditional Polish rye sourdough starter
Perfect for white borsch / żurek
Rich, tangy, fermented flavor
Quick and easy to prepare
Great for holiday meals and everyday cooking
A must-have for Polish soup lovers!
Directions: Add 1 bottle of sourdough to 2,5 l portions of boiling water or vegetable broth. Boil for 10 mins. Season to taste with salt and pepper, garlic and herbs.






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