Diabetic Blueberry Jam

2 tbsp. lemon juice
3 tsp. unflavored gelatin
1/8 tsp. salt
1-1/2 tsp. arrowroot
2-1/2 cup frozen unsweetened blueberries, partially thawed Non-nutritive sweetener equivalent to 2 cup sugar

Mix lemon juice, gelatin, salt and arrowroot; stir in blueberries. Boil gently until mixture thickens, stirring constantly (about 3-4 munutes). Stir constantly, boiling at full boil for 2 minutes. Remove from heat; stir in sweetener. Fill and seal jars.