1/2 c. butter
1 sq. unsweetened chocolate
1 c. sugar
1 c. flour
1/2 c. chopped nuts
1 tsp. baking powder
1 tsp. vanilla
2 eggs

FILLING:

6 oz. cream cheese, softened
1/2 c. sugar
2 tbsp. flour
1/2 c. butter
1 egg
1/2 tsp. vanilla
1/4 c. chopped nuts

FROSTING:

2 c. mini marshmallows
1/2 c. butter
1 sq. unsweetened chocolate
2 oz. cream cheese
1/4 c. milk
1 lb. powdered sugar (3 c.)
1 tsp. vanilla

Melt butter and chocolate. Add sugar, flour, nuts, baking powder, vanilla, and eggs. Mix well. Spread in greased 13 x 9 inch pan. In bowl combine filling. Spread over chocolate mixture. Bake 25-35 minutes. Sprinkle marshmallows. Bake 2 minutes more. Immediately make frosting. Melt butter, chocolate, and cream cheese. Stir in sugar and vanilla until smooth. Pour over marshmallows and swirl together.