1. Preheat oven to 350 degrees Fahrenheit.
2. Spray a 12-inch pizza pan with cooking spray and set aside.
3. In a medium bowl combine flour, baking powder and salt and set aside.
4. In a large bowl cream butter and sugar until light and fluffy. Add in egg and vanilla until combined. Gradually stir in flour mixture.
5. Spread dough using hands evenly on pizza pan. Bake in preheated oven for about 12 minutes. Seet aside to cool.

Topping

1. In a medium bowl mix cream cheese, sugar and vanilla untl blended. Spread evenly on cooled cookie.
2. Top with berries of choice. Chill until ready to serve.