Kvass (Russian fermented bread drink)
Time: 30 min + 2-3 days fermenting 6 servings (approx. 2 litres) approx. 200 kcal / serving (estimated) approx. 4 g protein / serving
Kvass is the traditional fermented bread drink of the East Slavic countries: slightly sour, a little sweet, and containing only trace amounts of alcohol. It's drunk cold on hot summer days, and is also the base of okroshka. It's easy to make at home.
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Method
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Toast the bread cubes at 180°C (160°C fan) for 15 minutes, until dark brown. ⏱ Timer: 15 min Put them in a large jar, pour over the hot water, and leave to stand, covered, for 6-8 hours. Strain off the liquid, and add the sugar and yeast. Ferment at room temperature, covered (but not airtight), for 12-24 hours. Bottle it, add a few raisins, and leave to mature in the fridge for a further 1-2 days. Serve cold.
A Receptnaptár original recipe. Calories and protein are estimated.
Tips
Use well-toasted bread, as that's what gives kvass its dark colour and distinctive flavour. Don't seal the fermenting jar airtight, as the gas can build up and crack it. If it's too sour, add more sugar at the second fermentation. Keep it in the fridge, as that slows the fermentation down.
Frequently asked questions
Does it contain alcohol?
In a small amount, usually 0.5-1.5 percent. Not recommended for children or pregnant women.
What bread works best instead?
Dark rye bread works best; white bread gives a softer, less distinctive kvass.
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