- 2 3/4 cups all-purpose flour
- 1 teaspoon cream of tartar
- 1 teaspoon baking soda
- 1/4 teaspoon salt
- 1/2 cup vegetable shortening
- 1/2 cup margarine, softened
- 1 1/2 cups white sugar
- 2 eggs
- 1 teaspoon vanilla extract
- 2 (8 ounce) packages cream cheese, softened
- 1 cup white sugar
- 2 teaspoons vanilla extract
- 3 large bananas, sliced – or as needed
- 1 tablespoon lemon juice, or as needed
- 1 (16 ounce) package fresh strawberries, sliced
- 1 (6 ounce) container fresh blueberries
- Preheat oven to 350 degrees F (175 degrees C). Whisk the flour, cream of tartar, baking soda, and salt in a bowl.
- In a large mixing bowl, mash the vegetable shortening and margarine together until thoroughly combined, and beat in 1 1/2 cup of sugar, eggs, and 1 teaspoon of vanilla extract. Mix in the flour mixture to make a workable dough, and spread the dough out in a rectangle shape onto an ungreased 12×17 inch baking sheet.
- Bake in the preheated oven until very lightly browned, 8 to 10 minutes. Allow to cool completely.
- While the cookie base is cooling, mash the cream cheese with 1 cup of sugar and 2 teaspoons of vanilla extract in a bowl until smooth. Place sliced bananas in a bowl, and gently toss with lemon juice to prevent browning.
- To decorate the pizza, spread the cream cheese filling all over the cookie base in an even, smooth layer. Place the blueberries in a square in neat, closely-spaced rows, in the left upper corner for blue stars. Arrange alternating stripes of white bananas and red strawberry slices across the pizza. Refrigerate leftovers.