1/2 c. butter
1 egg
1 egg yolk
1 c. sugar
1 1/2 c. flour
1 tsp. baking powder
1/4 tsp. salt
1/2 c. chocolate chips
1/2 c. walnuts
1 c. miniature marshmallows
2 egg whites
1 c. packed brown sugar

Cream butter, egg, egg yolk and sugar together. Add flour, baking powder and salt. Spread in greased 9"x13" pan. Bake at 350 degrees for 10 minutes. Remove from oven and sprinkle chocolate chips, walnuts and marshmallows over bars. Beat egg whites and brown sugar together and spread over chips. Return to oven and bake for 15 minutes. Do not over bake.