Combine plums with 1/2 cup water and the lemon juice in a heavy saucepan. Bring to a boil; simmer gently for about 8 minutes, stirring frequently.

Meanwhile, soak gelatin in remaining 1/4 cup cold water.

Remove cooked plums from heat; add gelatin and sweetener and mix well to dissolve. Turn into small, hot jars; cover lightly and allow to cool.

Cover tightly and store in refrigerator no longer than two weeks.

This recipe yields 1 1/4 cups.

Exchanges Per Serving: Up to 2 tablespoons may be considered Free Food.

Nutrition Facts: Carbohydrates 2g; Protein 0g; Fat 0g; Calories 8; Fiber 0.2g; Sodium 0mg; Cholesterol 0mg.