Blackberry Jam - cooking recipe

Ingredients

4 c. crushed berries
3 3/4 c. sugar
2 Tbsp. lemon juice
1/2 tsp. ground cinnamon
1/4 tsp. salt

Preparation

Wash, rinse, drain and thoroughly crush and measure berries into kettle.
Add the rest of the ingredients.
Put kettle over low heat and stir mixture until sugar dissolves; then boil rapidly to or almost to jellying point or until jelly rounds up slightly in spoon.
Remove from heat; quickly skim off foam and pour hot jam into sterilized jars and seal while hot.
Makes 4 to 5 half pints.