1 qt. finely chopped rhubarb
1 c. blackberries
4 c. sugar

Cover chopped rhubarb with boiling water and let set for 8 minutes. Drain well and add 1 cup blackberries. Stir 2 cups sugar into berries and rhubarb; boil 3 minutes. Then add the other 2 cups of sugar; bring back to a boil and boil for 5 minutes. Seal in pint jars. May substitute red raspberries or strawberries for the blackberries.