Creating your Sugar Cookie Flag Fruit Pizza is easy when you follow these simple steps:

1. Preheat Oven: Preheat your oven to 375°F (190°C).
2. Mix Dry Ingredients: In a bowl, whisk together flour, baking soda, baking powder, and salt.
3. Cream Butter and Sugar: In a large mixing bowl, cream the softened butter and granulated sugar until light and fluffy.
4. Add Egg and Vanilla: Beat in the egg and vanilla extract until well combined.
5. Combine Mixtures: Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
6. Spread Dough: Spread the dough evenly onto a greased pizza stone or baking sheet, forming a large circle (about 12 inches in diameter).
7. Bake: Bake in the preheated oven for 10-12 minutes or until the edges are lightly golden. Remove and let cool completely.
8. Prepare Frosting: In a medium bowl, beat together cream cheese, powdered sugar, and vanilla extract until smooth. Gently fold in the whipped topping.
9. Frost Cookie Base: Once the cookie has cooled, spread the frosting evenly across the top of the cookie.
10. Decorate with Fruits: Arrange the sliced fruits on top of the frosting in a flag pattern, starting with rows of strawberries and blueberries.
11. Chill: Place the finished fruit pizza in the refrigerator for at least 30 minutes before serving to allow the flavors to meld.