These Oreo S'mores Brookies will have your sweet tooth celebrating. This is the ultimate crave-worthy dessert recipe - it's impossible to eat just one!
Preheat oven to 350 degrees F. and line a 9 x 13-inch size baking dish with parchment paper.
Prepare brownie mix according to package directions and pour evenly into bottom of parchment lined baking sheet. Top evenly with Oreo cookies, graham crackers, mini marshmallows and crumbled a part cookie dough. Bake for 45-55 minutes, until baked through. Remove and let cool completely.
Cut into squares and serve room temperature or warmed slightly.