Prep 5 mins
Cook 1 hr 30 mins
- 2 liters beef stock or 2 liters vegetable stock
- 1 onion, peeled and chopped
- 1 bouquet garni
- 1 can mushroom (or fresh)
- 3 medium uncooked beetroots, peeled and sliced thickly
- 300 ml kwas
- 1 teaspoon sugar
- Heat beef stock in a large pan.
- Add the onion, bouquet garni, mushrooms and beetroot.
- Boil for an hour.
- Strain the soup and stir in the kwas into the clear soup.
- Add sugar to taste and reheat, if necessary without boiling.