1 envelope (1 tablespoon) Knox Gelatine powder
1 cup boiling water
1 cup cold water; sparkling water or diet soda of choice
10 packets Splenda (or artificial sweetener of choice)
1 teaspoon unsweetened Kool-Aid powder (adjust to taste)
Sprinkle gelatine into cold water. Let stand 1 minute. Mix in Splenda and Kool-Aid powder. Stir until thoroughly dissolved. Add boiling water and stir. Taste the mixture and adjust amount of Splenda and Kool-Aid to taste. You may need a little more of each. Chill until firm.
Makes 4 servings.
Can be frozen to make popsicles, too.