Chilled Kefir and Fermented Beet Soup with Golden Polenta Cubes
Credit where credit is due: this recipe is heavily inspired (just short of plagiarism) by a recipe in Amber & Rye: A Baltic Food Journey. It’s a lovely book, by a lovely author.
Her version uses a home-made cultured beet elixir that takes five days to ferment. I use the store-bought variety. She uses crispy leftover potato. I use polenta. Either way, it’s two fermented foods (beets, milk) in one soup. It’s light, tangy, and refreshing. It’s wonderful on a sunny day, decent on a cloudy one. It’s nice lunch, and a fine breakfast. And it’s ready in 10 minutes, 5 minutes (and keto) if you skip the crispy potato.
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4 pink radishes, finely sliced | 1 C finely diced cucumber (about 1/2 English cuke) |
1 bottled (~10 oz) fermented beet kvass (I use Real Pickles brand) | 2 C unsweetened milk kefir |
3 Tbsp chopped dill | neutral oil for shallow frying |
½ an 18-oz packaged prepared polenta, cubed | optional: salt, honey, lemon, pepper |
- Mix together the veggies and dill, kefir and kvass. If you let it sit at least half an hour, the dill flavors will permeate the soup.
- You may adjust flavors with salt, honey, and lemon juice. Personally, I prefer not to.
- Heat a thin layer of oil in a heavy skillet, then cook your polenta until it’s crisp and golden, stirring regularly but also gently.
- Pour soup into bowls, and then ladle in the polenta.
- For a heartier meal, serve with rye bread (the real kind) and tinned or smoked fish.
What are kefir and kvass anyways? Both are traditional fermented beverages, originating in the Baltic states and/or Russia. Kefir, in the Caucasus mountains.
Kefir is a “drinkable yogurt,” but fermented with a broader range or probiotics. Kvass is a broad term for all sorts of fermented beverages. The most common types are bread kvass (sort of like a non-alcoholic beer), and beet kvass, which is tart, tangy, and refreshing. If I were a kid, I’d probably say “yuck, this is sour.” As an adult, I love it.
You can even try Kanji, which I’d never even heard of a year ago. Kanji is (basically) a Punjabi version of beet kvass. They use beet, carrot, mustard seeds, and hing.
Turns out, the whole world ferments. And for good reason. It was a way to preserve food before refrigeration, and the health benefits are real.