Prepare the Base:
In a large mixing bowl, beat the softened cream cheese until smooth and creamy.
Sweeten and Flavor:
Add the powdered sugar and vanilla extract to the cream cheese. Beat until fully combined and fluffy.
Fold in the Whipped Topping:
Gently fold in the whipped topping using a spatula until the mixture is light and airy.
Add the Cherries and Marshmallows:
Stir in the cherry pie filling and mini marshmallows (if using), ensuring everything is evenly distributed.
Chill:
Refrigerate the fluff for at least 1 hour to let the flavors meld and the texture firm up.
Serve:
Scoop into serving bowls or glasses. Garnish with crushed graham crackers or a dollop of extra cherry pie filling if desired.