Barszcz biały: Polish white borscht with sausage and egg
This tangy Polish soup combines fermented wheat starter, white pork sausage, potatoes and carrot, finished with marjoram, cultured cream and a hard-boiled egg.
Barszcz biały is a gently sour soup built around a fermented grain starter. This version uses ready-to-use wheat starter, fully cooked white sausage, potatoes and carrot; a small amount of sour cream softens the sharpness without hiding it. Simmering the starter briefly with the vegetables and sausage brings the broth together while keeping the soup light rather than heavily thickened.
The name overlaps with żur in Polish culinary history, and the distinction is not uniform across regions. Wheat starter is a common modern way to distinguish barszcz biały from rye-based żur, but official regional records also document white barszcz made with rye starter. This recipe chooses a wheat-based version and is not presented as an exact reproduction of any one listed regional product.
Serve each bowl hot with one hard-boiled egg and a little parsley. The fermented starter gives the broth its sour note, while the sausage and potatoes make it filling enough for a main course. The recipe yields five bowls of about 500 ml each, with one egg per serving.


