1/2 c. butter
3/4 c. sugar
2 eggs
1 tsp. vanilla
1 1/3 c. flour
3/4 c. graham cracker crumbs
1 tsp. baking powder
1/4 tsp. salt
4 (1.65 oz.) chocolate bars
1 1/2 c. marshmallow creme

In large bowl of electric mixer, cream butter and sugar until light and fluffy. Beat in eggs and vanilla.

In medium bowl, combine flour, cracker crumbs, baking powder and salt; add gradually to creamed mixture. Dough will be very stiff. Spread or pat half of the dough in bottom of greased 8 inch square baking pan. Arrange chocolate bars over dough breaking as needed to fit. Spread marshmallow top and spread carefully with spatula or floured fingers making an even layer over top. Bake at 350 degrees for 30-35 minutes until lightly browned on top. Cool pan on wire rack and cut into squares.