Duonos gira (Lithuanain kvass) is a low- to no-alcohol drink made from fermented dark rye bread. It is often served in Lithuania as a summertime drink but is also good served hot in winter.
5 qt water
1 lb dried black rye bread (Lithuanian rye-like sourdough)
1 lb white granulated sugar (optional)
4 teaspoons yeast
1 cup raisins
Boil water and pour over the cubed bread. Let soak for 24 hours.
24 hours
Strain the liquid off, and reserve it. Mix yeast and sugar into this liquid. Keep in a warm place for 48 hours.
48 hours
Transfer liquid to bottles. Add raisins or other dried fruit and close off bottles.
The duonos gira is now ready to drink. Store bottles in cool place for up to 2 months.