Preheat the oven to 350 degrees F.
In a medium bowl, cream together sugar, butter and egg with a hand mixer.
In another bowl, mix flour, cream of tartar, baking soda and salt.
Add dry ingredients to creamed mixture and mix until well combined.
Dip hands in flour and spread dough onto a lightly greased pizza pan until it is approximately ¼ inch thick. Leave 1–2 inches around the edges of the pan for dough to expand.
Bake for 10 minutes, then let cool.
While crust cools, make the frosting. In a medium bowl, cream together cream cheese, sugar and pineapple juice with the hand mixer. Spread over cooled cookie crust.
Right before serving, add desired fruit in the pattern you prefer. Tip: Dip bananas in pineapple juice to keep them from getting dark fast.
Keep refrigerated for up to 3 hours until ready to serve.