6 sheets Graham Crackers, divided (whole Graham Crackers)
4 tablespoons Unsalted Butter, melted
1 cup Miniature Marshmallows
1/2 cup Chocolate
1 Hershey Milk Chocolate Bar, coarsely broken (1.5 ounces)
14 1/2 ounces Sweetened Condensed Milk, (1 can)
Preheat oven to 350°F. Spray an 8x8-inch baking dish with nonstick cooking spray. Line with parchment paper, allowing edges to overhang so that bars can be lifted out later. Spray parchment paper lightly once more.
In the bowl of a food processor, coarsely break up 14 Oreo cookies and 4 graham cracker sheets. Pulse until fine crumbs form. Drizzle crumbs with melted butter and pulse again until evenly moistened.
Press crumb mixture into the bottom of prepared pan. Bake in preheated oven 10 minutes. While crust bakes, coarsely break remaining 6 Oreos and remaining 2 sheets of graham crackers into a small bowl. Set aside.
Remove crust from oven and immediately sprinkle warm crust with marshmallows, broken Oreos and graham crackers, chocolate chips and Hershey bar pieces. Evenly pour sweetened condensed milk over everything.
Return to oven and bake 50 minutes. Cool completely in pan on a wire rack.