Spiced Blueberry Jam - cooking recipe

Ingredients

3 cups fresh blueberries (or frozen and thawed)
1 tablespoon lemon juice
3 1/2 cups sugar
1 teaspoon cinnamon
1/4 teaspoon clove
1/4 teaspoon allspice
1 (3 ounce) envelope liquid pectin

Preparation

Remove any stems from berries.
Crush fruit (1 layer at a time). Measure 2 1/2 cups, packed solidly.
If necessary, add water to make up amount. Pour into large pot.
Add lemon juice, sugar, and spices, mixing well.
Bring to a full boil (a boil that cannot be stirred down) and boil, stirring for 1 minute. Remove from heat stir in pectin and immediately ladle into hot jars.