Prepare brownie batter in a large mixing bowl according to the box instructions and spray an 11″ tart pan with removable bottom with non-stick cooking spray. If you’re using a round pizza pan or something else without a removable bottom, place a parchment paper round at the bottom for easy removal of the pizza.

Pour brownie batter into a prepared pan and bake at 350 F for 22-25 minutes. Do not overbake.

While the crust cools, prepare buttercream.  In a separate bowl combine room temperature butter, powdered sugar and vanilla extract.  Beat on high for 5 minutes with an electric mixer or stand mixer.

Remove brownie from pan and spread buttercream in a thin layer over the cooled brownie crust.

Place the fruit toppings over the buttercream layer. Slice and serve