Originally posted by nagymom in Aug 2003 WFD
1/2 cup sugar
3 tablespoons cornstarch
1/4 teaspoon salt
2 cups water
5 cups blackberries
4 cups raspberries
1/2 teaspoon fresh lemon juice, or to taste
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Whisk in sugar, cornstarch, and salt until combined well. In a saucepan simmer water and 1/8 cup each type of berry 2 minutes. Drain mixture in a sieve set over a bowl, reserving liquid. Transfer cooked berries to a large bowl and stir in remaining fresh berries.
Gradually whisk reserved hot liquid into sugar mixture until smooth. Transfer mixture to pan. Bring mixture to a boil, whisking, and simmer, whisking, 3 minutes. Immediately pour mixture through sieve into berriesand stir until combined well. Stir in lemon juice. Chill kissel, covered, at least 2 hours, or until cold.