Begin by unwrapping the Little Debbie Christmas Tree Cakes and placing them in a large mixing bowl. Use a fork to break the cakes into small pieces.
In a separate bowl, beat the softened cream cheese until smooth and creamy. Add the powdered sugar and vanilla extract, and continue to beat until well combined.
Gently fold in the whipped topping until the mixture is light and fluffy.
Add the crumbled Christmas Tree Cakes to the cream cheese mixture, and stir until all ingredients are thoroughly combined.
Serve with graham crackers, vanilla wafers, or fruit slices for dipping.