Ingredients
Instructions
- Heat oven to 350°F.
- Grease 8-inch square baking pan.
- Beat butter and sugar until well blended in large bowl.
- Add egg and vanilla; beat well.
- Stir together flour, graham cracker crumbs, baking powder and salt; add to butter mixture, beating until blended.
- Press half of dough into prepared pan.
- Bake 15 minutes.
- Unwrap chocolate bars; arrange over baked layer, breaking as needed to fit.
- Sprinkle with marshmallows; scatter bits of remaining cookie dough over marshmallows, forming top layer.
- Bake 10 to 15 minutes or just until lightly browned.
- Cool completely in pan on wire rack.
- Cut into 16 bars.
- YUM!