-
1
Stir together orange-flavored gelatin, 1 envelope unflavored gelatin, and 1 1/2 cups boiling water until gelatin dissolves. Pour into an 8-inch square pan. Repeat with lime- and strawberry-flavored gelatins, placing each mixture in its own pan. Chill pans until firm.
-
2
Run a small knife around outer edge of each pan. Cut chilled gelatin into 1/2-inch squares. Dip bottom of pans in warm water for 10 seconds. Unmold gelatin squares onto a jelly-roll pan. Chill until ready to use (up to 24 hours).
-
3
Preheat oven to 350u00b0. Stir together graham cracker crumbs, butter, and 1/4 cup sugar. Press into bottom of a 10-inch springform pan, and bake 10 minutes. Cool completely (about 20 minutes).
-
4
Meanwhile, sprinkle remaining 1 envelope unflavored gelatin over 1/4 cup cold water. Microwave pineapple juice in a microwave-safe bowl at HIGH 1 minute or until hot. Add hot pineapple juice to gelatin mixture, and stir until gelatin dissolves. Chill until consistency of unbeaten egg whites (20 to 30 minutes).
-
5
Beat cream, vanilla, and remaining 1/2 cup sugar until stiff peaks form. Fold in pineapple mixture until blended.
-
6
Gently fold three-fourths of gelatin squares into pineapple mixture; pour over crust in pan. Tap pan sharply on counter to remove air bubbles. Top with remaining gelatin. Tap on counter again. Cover and chill 12 hours.
-
7
Run a small knife around edge of pan, before unlocking sides, to break seal. Remove sides of pan before serving.
