Gooey s'mores bars with graham cracker crust, chocolate, and toasted marshmallow bring campfire magic to the kitchen. This fun, family-friendly dessert captures s'mores flavor without the campfire.
Preheat the oven to 350°F. Line an 8-inch square baking pan with parchment paper for easy removal.
Combine graham cracker crumbs, melted butter, sugar, salt, and vanilla extract in a bowl. Mix until the crumbs are fully moistened.
Press the graham mixture firmly into the bottom of the prepared pan, making an even, compact crust.
Sprinkle chocolate chips evenly over the crust, then layer mini marshmallows on top. Press gently to help them adhere.
Bake for 15 minutes, then switch to broil for 1–2 minutes to toast the marshmallows. Watch closely to prevent burning. Cool completely before slicing.