clipped from: www.bulkfoods.com   

1/2 cup cold water
3 tablespoons unflavored gelatin
1 cup boiling water

12 oz can frozen juice concentrate

Let the gelatin soften in the cold water for 1 minute then mix into the boiling water. Stir about 5 minutes until all the gelatin is dissolved. When you are absolutely certain that all of the gelatin has dissolved add the undiluted, frozen juice concentrate. Stir until the frozen concentrate melts completely. Place the gelatin mixture into a dish or pan and chill overnight, or until firm. Cut the pan into squares. Great for after school or lunch box snacks.