Preheat your oven to 350˚F.
In a large bowl, whisk together the flour, baking powder and salt.
In a separate bowl, use an electric mixer to cream the butter and sugar into a light, fluffy mixture. Then beat in the egg and vanilla. With the mixer on low, slowly add your flour mixture until smooth.
Line a baking tray with parchment or waxed paper. Press the dough into a circle or square about ¼-inch thick. Bake 8-10 minutes, or until lightly browned.
While the cookie is hot, use a paring knife or pizza cutter to slice it into shapes. It doesn’t matter what shapes you pick — they will all fit together!
Let the cookie cool. Then frost each puzzle piece with a thin layer of cream cheese and decorate with fruit.