Creating this delightful Red White & Blue Fluff Salad is straightforward. Just follow these easy steps:

1. Prepare the Cream Cheese Mixture: In a medium bowl, beat the soften cream cheese until smooth.
2. Add Sweetener: Gradually mix in the powdered sugar and vanilla extract until fully combined.
3. Incorporate the Whipped Topping: Gently fold in your whipped topping until the mixture appears creamy and uniform.
4. Mix in the Fruits: Carefully add the sliced strawberries and blueberries, followed by the miniature marshmallows, gently folding them into the mixture to avoid crushing.
5. Chill: Transfer the salad to a serving bowl and cover it with plastic wrap. Refrigerate it for at least 1 to 2 hours before serving to allow the flavors to meld.
6. Serve: Before serving, give it a gentle stir and check for any additional powdered sugar or whipped topping if desired.

Following these steps will help create a beautifully layered salad that is mouthwateringly delicious.