Lunchbox Smores Bars 1/2 cup butter, melted 1/2 cup brown sugar 1 cup flour 1/2 cup graham cracker crumbs 1 1/2 cups milk chocolate chips 1 1/2 cups miniature marshmallows In a large bowl, beat together butter, brown sugar, flour, and graham cracker crumbs. Press evenly into a 9 x 9 square baking dish that has been coated with non stick spray. Sprinkle chocolate chips and marshmallows evenly over top. Bake at 375 degrees for 12 to 15 minutes or until the marshmallows are toasted brown. Cool completely before slicing and serving (TIP: spray a non serrated knife with nonstick spray before slicing).