1) Heat oven to 350F. Grease 8-inch square baking pan.

2) Mix graham cracker crumbs, melted butter, and sugar until mixed. Press half of dough in prepared pan.

3) Sprinkle chocolate chips over graham cracker layer.

4) Sprinkle with mini marshmallows; scatter bits of remaining graham cracker crust over marshmallows.

5) Bake 15 to 17 minutes or just until lightly browned. Cool completely in pan on wire rack.

6) Cut into bars. 16 bars.