Healthy zurek — Polish sour rye soup, lighter on sodium and fat Healthy Żurek: Polish Sour Rye Soup with Less Sodium and Leaner Protein Zakwas starter: 5–7 days | Soup: 50 min active | Serves: 4–6 | Difficulty: Intermediate Quick Overview Make the zakwas (fermented rye starter) 5–7 days ahead — identical to the traditional…