4 c. blackberry juice
Juice of 1 lemon
3 c. sugar
1 qt. water

Combine berries and water and bring to a boil. Cook until berries are soft (about 10 minutes). Let juice drip through a jelly bag. In a sauce pan, bring to a boil 4 cups of juice. Boil very hard for 10 minutes. Add sugar and lemon juice. Boil for 7 to 10 minutes more until it thickens. Pour into sterile jelly jars and seal with paraffin.