1 tsp baking powder
1/4 tsp salt
2 king-sized Hershey's milk chocolate bars
1 1/2 cups marshmallow creme/fluff (7 1/2 oz jar)
Directions:1. Preheat oven to 350°F. Grease an 8-inch square baking pan.
2. In a large bowl, cream together butter and sugar until light. Beat in egg and vanilla. In a small bowl, whisk together flour, graham cracker crumbs, baking powder and salt. Add to butter mixture and mix at a low speed until combined.
3. Divide dough in half and press half of dough into an even layer on the bottom of the prepared pan. Place chocolate bars over dough. 2 king-sized Hershey’s bars should fit perfectly side by side, but break the chocolate (if necessary) to get it to fit in a single layer no more than 1/4 inch thick. Spread chocolate with marshmallow creme or fluff. Place remaining dough in a single layer on top of the fluff. This part can be tricky. I made little disks with the dough and formed them into a sheet on some parchment paper then transferred it over. Spread it around gently.
4. Bake for 30 to 35 minutes, until lightly browned. Cool completely before cutting into bars.