Line a pizza pan with parchment paper and clip the edges with binder clips so the batter doesn’t slip as you mold it to the pan. 

To make the brownies:  Combine melted butter and cocoa powder in a medium sized bowl. With a standing mixer or by hand, mix until incorporated. Add sugar and mix well. Add eggs and vanilla, mixing until smooth. Add flour, and mix until fully combined.

Pour batter onto prepared pan and gently mold into a flat circle, stopping about 2-3 inches from the edge. Remove binder clips and bake at 350° for 20-25 minutes. Remove from oven and allow to cool for ten minutes. You may pop it into the refrigerator to speed cooling time.

To make the frosting:  Combine all ingredients and beat for about 30 seconds, or until smooth and lump free. Spread on to completely cooled brownie pizza.

Top with fresh fruit, nuts, crushed Oreos, or whipped cream + caramel.  Serves 12-16. Store coveted at room temperature for up to three days.  Enjoy!