Mud-Hen Bars

1/2 cup butter
1 cup white sugar
1 whole egg
2 eggs, separated
1 1/2 cups flour
1/4 tsp salt
1 tsp baking powder
1 cup chopped nuts
1/2 cup chocolate bits
1 cup miniature marshmallows
1 cup light brown sugar

Cream butter and sugar. Beat in whole egg and 2 egg yolks. Sift dry ingredients. Combine the 2 mixtures. Blend thoroughly. Spread batter in 9x13 inch pan. Sprinkle nuts, chocolate bits and marshmallows over batter. Beat egg whites until stiff. Fold in brown sugar. Spread on top of cake. Bake at 350F for 30 to 40 minutes. Good warm or cold. Makes 32 bars.