01 -
Heat oven to 350°F. Grease a 12-inch pizza pan or line it with parchment paper for easy removal.
02 -
In a large bowl, stir melted butter and sugar until glossy. Add eggs one at a time, mixing well after each addition. Stir in vanilla extract.
03 -
Whisk flour and salt in a separate bowl. Gradually add to wet mixture and stir until just combined, avoiding overmixing.
04 -
Fold white chocolate chips and 1 cup of M&M's into the batter using a spatula until evenly distributed.
05 -
Spread batter evenly in prepared pan and smooth the surface. Bake for 25 to 30 minutes until edges are golden and a toothpick inserted comes out with a few moist crumbs.
06 -
Allow brownie pizza to cool completely in the pan. Sprinkle extra M&M's on top, slice into wedges, and serve.