This beet greens soup is a Polish-style dish made using beet stems and leaves and a handful of vegetables including a small amount of shredded beet for added colour. It's easy to make and delicious, perfect to enjoy in spring and summer using seasonal produce.
Sautee onion: Heat the oil, add the allspice berries, onion and celery root and cook gently for 3 minutes until softened, stirring often. Stir in the garlic.
Add vegetables: Add the chopped beet greens, grated carrot, beet and potatoes. Add the stock, a few grindings of pepper, stir, cover and bring to a boil then lower the heat and simmer gently for 20 minutes (until the potatoes are tender).
Prepare sour cream: In a small bowl stir together the sour cream, flour and 1 tablespoon of cold water until smooth and creamy. Stir in 3-4 tablespoons of the soup then add the mixture into the pot stirring until thoroughly incorporated. Add the butter, dill and simmer for about 2 more minutes.
Serve: Remove from the heat, add the vinegar, more salt and pepper, if needed, and serve.
Notes
When buying beet greens choose ones with firm stems and vivid green leaves. They are usually sold along with beets, which can stay attached until you are ready to make the recipe.
Rinse the beet greens thoroughly to get rid of any grit before making the soup.
Serve hot. Leftover Polish beet tops soup can be refrigerated for up to 4 days. I find that it needs a little more salt and pepper the next day.