In a large bowl, combine the orange jell-o powder with hot water and whisk until the powder dissolves.

Once dissolved, add the cold water and stir to combine. Refrigerate for 15-20 minutes.

Remove from the refrigerator and add the instant vanilla pudding powder to the bowl and whisk to combine, making sure to get the sides of the bowl so everything is evenly incorporated. Place the bowl back in the fridge and chill for another 15-20 minutes.

After it has chilled a bit, remove from the refrigerator and add the Cool Whip. Fold together with a rubber spatula until evenly incorporated.

Then add the drained mandarin oranges, crushed pineapple, and mini marshmallows. Fold gently with a rubber spatula to combine. You want to be careful not to break apart the mandarin oranges.

Chill in the refrigerator for at least 2 hours before serving. This allows the cream to thicken, the flavors to blend together, and the marshmallows to soften. Enjoy!