Sugar Free Pineapple "Preserve"

Sugar Free Pineapple "Preserve" 1 envelope (1 tablespoon) plain gelatin 3/4 cup canned unsweetened pineapple juice One 20-ounce can of unsweetened crushed pineapple, undrained Optional: sugar substitute to taste Sprinkle gelatin on canned pineapple juice (don't use fresh or frozen). Wait one minute until gelatin softens, then heat gently until melted and clear. Remove from heat and stir in undrained, canned crushed pineapple. Sweeten to taste, if desired. Transfer to covered jars and store in the refrigerator. Makes approximately 2 1/2 cups, 15 calories per tablespoon.