Mountain Blackberry Jam - cooking recipe

Ingredients

2 qt. firm ripe blackberries
8 1/2 c. sugar
1 pkg. pectin

Preparation

Wash and grind berries or crush completely one layer at a time, so that each berry is reduced to pulp.
Pour sugar into dry dish.
Measure 6 cups berries into a large kettle.
Add pectin. Stir well and bring to a boil.
Add sugar.
Mix well.
Continue stirring and bring to a full rolling boil.
Boil for 4 minutes. Pour into prepared jars and seal.