Sprinkle gelatin over water in a saucepan.
Allow gelatin to soften for 5 minutes.
Bring to a boil, stirring to dissolve gelatin.
Remove from heat.
While hot, stir in orange-drink mix and fructose.
Chill until the consistency of egg whites.
Stir in mandarin orange slices.
Transfer to four dessert dishes.
Chill until firm.