Instructions: * Turbinado sugar works well in this recipe.

Put the berries in a large container and pop them with a potato masher.

Cover with boiling water to extract the juice. Let stand for 12 hours.

Strain out the berries, and set aside for another use. Measure out 1/4 cup of the liquid and combine with 1 tsp. sugar. Heat the mixture in the microwave for 12 seconds to lukewarm, add the yeast, and let proof for 5 minutes.

To the remaining strained cranberry juice, add the sugar, cream of tartar, and yeast mixture. Cover, and let stand in a warm place for 8 hours.

Strain the fermented cranberry juice (which is now kvass), bottle, and leave at room temperature for another 8 hours. Refrigerate until ready to serve.

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