1/2 c. butter
1 c. sugar
1 square or envelope (1 oz.) chocolate
1 c. sifted flour
1/2 c. nuts, chopped
1 tsp. vanilla
2 eggs
1 tsp. baking powder

FILLING:

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

FROSTING:

2 c. miniature marshmallows
1/4 c. butter
1 square or envelope (1 oz.) unsweetened chocolate
2 oz. cream cheese
1/4 c. milk
1 lb. (about 3 c.) powdered sugar
1 tsp. vanilla

Preheat oven to 350 degrees. In a large saucepan, melt butter and chocolate over low heat. Remove from heat then add sugar, flour, nuts, baking powder, vanilla and eggs. Mix well. Spread in greased and floured 13 x 9 inch pan.

In bowl combine filling ingredients. Spread over chocolate mixture in pan. Bake at 250 degrees for 35 minutes or until toothpick comes out clean. Sprinkle with marshmallows and bake 2 minutes longer.

Immediately prepare frosting by combining butter, chocolate, cream cheese and milk in saucepan. Heat over low heat until chocolate melts. Stir in powdered sugar and vanilla until smooth. Pour over marshmallows and swirl together. Cool and cut into bars.