01 -
Pour 1 cup of boiling water into a large mixing bowl. Add the orange Jell-O powder and whisk for about 2 minutes until completely dissolved with no remaining granules.
02 -
Stir in ½ cup of cold water to the dissolved Jell-O mixture. Place the bowl in the refrigerator for about 20 minutes, until the mixture begins to thicken but isn't completely set.
03 -
Once the Jell-O has slightly thickened, remove from the refrigerator and add the entire box of instant vanilla cheesecake pudding mix. Whisk until fully combined - the mixture will become thicker and creamier. Return to the refrigerator for another 20 minutes.
04 -
Remove the bowl from the refrigerator. Gently fold in the Cool Whip until smooth and well incorporated. Then carefully fold in the drained mandarin orange segments and pastel mini marshmallows, being gentle to keep the orange segments intact.
05 -
Cover the bowl and refrigerate for 1-2 hours to allow the dessert to set properly and for all the flavors to blend together.
06 -
Scoop the finished fluff into individual serving dishes. If desired, garnish with additional mandarin oranges, marshmallows, or a sprig of mint for a fresh touch.