Sugar & Spice Blackberry Jam

I saw this recipe on The Revolution 02/28/12.

Ingredients:

• 4 cups fresh or frozen blackberries, thawed
• 1/4 cup lemon juice
• 1/2 cup sugar substitute
• 1 1/2 teaspoon grated lemon peel
• 1/4 teaspoon cinnamon

Instructions:

• In a heavy 4-quart pan, combine berries and lemon juice. Mash berries slightly, if desired.
• Bring to a boil over medium heat, stirring often.
• Stir in sugar, lemon peel, and cinnamon.
• Return to a boil, stirring to dissolve sugar substitute.
• Reduce heat to medium and boil gently for about 15 minutes. Stir often.
• Remove from heat and stir jam. 
• Put jam into any container you have available and refrigerate.

1 tablespoon of jam = 15 calories