In a medium-sized bowl, whip the heavy cream until soft peaks form. Then, fold in the Cool Whip, sour cream, and powdered sugar. Stir until the mixture is smooth and well combined.

1. In a large mixing bowl, combine the drained pineapple chunks, mandarin orange segments, mini marshmallows, and any other optional fruits like diced apple or sliced banana. Stir gently to avoid breaking up the fruit.
2. Add the whipped cream mixture to the bowl with the fruit and marshmallows. Gently fold everything together until all of the fruit is coated with the creamy dressing.
3. Stir in the shredded coconut and chopped nuts (if using). This adds an extra layer of flavor and crunch to the salad.
4. Cover the Ambrosia Fruit Salad and refrigerate for at least 2 hours, or overnight, to let the flavors meld and the salad to chill.
5. Before serving, give the salad a gentle stir and garnish with additional coconut or nuts if desired. Serve chilled and enjoy!