1
Preparation. Peel the beetroots and slice them thinly. If you are using homemade Beetroot Kvass, ensure it's prepared ahead of time.
2
Cooking. In a large pot, bring the vegetable or chicken broth to a boil. Add the sliced beetroots, bay leaves, and all spice berries to the pot. Reduce the heat and let it simmer for about 30 minutes or until the beetroots are tender.
3
Removing Beetroot and Spices. Once the beetroots are tender, use a slotted spoon to remove them along with the bay leaves and all spice berries from the soup.
4
Adding Kvass. If you are using beetroot kvass, stir it into the soup at this stage.
5
Final Seasoning. Stir in the crushed garlic and the marjoram, rubbing the marjoram between your fingers as it goes in to wake it up. Add the white wine vinegar, sugar, salt and black pepper to taste, then let it sit on the lowest heat for five minutes. Both the garlic and the herb go in at this stage rather than earlier: long simmering turns garlic sweet and mild, and it is the sharp edge you want here.
6
Serving. Depending on the occasion, serve the barszcz over uszka z grzybami, or with a boiled egg, potatoes, a spoonful of soured cream, or krokiety alongside. It is also very good on its own, drunk from a mug. A little chopped dill or parsley finishes it. Do not throw away the strained-out beetroot: dressed with oil and vinegar it makes a good salad.