1-First Step: Gather and Prep Your Mise en Place Preheat your oven’s broiler to high, positioning the rack about 6 inches from the heat source. Crush 6 full graham cracker sheets into fine crumbs using a zip-top bag and rolling pin or food processor this yields about 1 cup. Trim edges from 6-8 s’mores Pop-Tarts if they don’t fit neatly. Line a 9×13-inch pan with parchment for easy release, or lightly grease it. This setup takes 5 minutes and prevents mess.

2-Second Step: Build the Base Layer Arrange the Pop-Tarts flat in the pan, pressing them together to cover the bottom snugly. They act as the crust, infusing graham and chocolate notes from the start. If using fewer, overlap slightly for even coverage. For extra flavor, spread a thin layer of softened peanut butter here about 1/4 cup before adding toppings.

3-Third Step: Add Toppings Evenly Sprinkle 1 cup mini marshmallows across the top in a single layer. Follow with 1 cup semi-sweet chocolate chips, distributing them uniformly for balanced melting. Finish by scattering the 1 cup graham cracker crumbs over everything. This order ensures marshmallows toast on top while chocolate melts beneath.

4-Fourth Step: Broil to Perfection Place the pan under the broiler for 2-4 minutes. Watch closely marshmallows will puff and turn golden brown quickly. Rotate the pan halfway if your broiler heats unevenly. Remove once edges crisp but center stays gooey; over-broiling leads to burnt bits.

5-Final Step: Cool, Cut, and Serve Let the pan cool on a wire rack for 10 minutes. The chocolate firms up slightly for clean cuts. Slice into 12-16 bars using a sharp knife. Serve warm for peak gooeyness, perhaps with a scoop of ice cream. Total time: 20 minutes. These graham cracker bars shine at potlucks or movie nights.