Stir boiling water into gelatin at least 2 minutes until completely dissolved. Add cold water. Measure 3/4 cup gelatin into small bowl; set aside. Refrigerate remaining gelatin until slightly thickened. Stir in fruit. Pour gelatin mixture into serving bowl. Refrigerate until set but not firm.
Place small bowl of measured gelatin in larger bowl of ice water. Stir until slightly thickened. Beat with electric mixer on high speed until thick and about doubled in volume. Spoon over gelatin in bowl. Refrigerate until firm, about 4 hours. Garnish with additional fruit and mint leaves, if desired.
Makes 6 Servings