4 c. crushed blackberries
8 tbsp. liquid sweetener

Measure crushed blackberries into a kettle. Add sweetener and stir well. Boil rapidly, stirring constantly until mixture thickens. Pour hot into hot jars, leaving 1/4 inch head space. Adjust caps. Process 15 minutes in boiling water bath. Yield: about 1 pint. 1 tablespoon = 10 calories.