Storage: The Vinegret salad tastes better if prepared a day in advance, allowing flavors to meld. Store in the refrigerator.
Substitutions: For the soup, if you cannot find kefir, plain Greek yogurt or buttermilk are excellent alternatives.
Variations: You can add dill or parsley to the soup for extra freshness. Hard-boiled eggs and cucumber can be added to the soup just before serving for extra texture.
Tip: To remove beet skin easily, rub the boiled beets with a paper towel or plunge them in ice water briefly.