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

Preheat oven to 350 degrees. In large sauce pan, melt butter and chocolate over low heat. Remove from heat. Add sugar, flour, nuts, baking powder, vanilla and eggs; mix well. Spread in greased and floured 13 x 9 inch pan.

FILLING INGREDIENTS:

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

In bowl combine filling ingredients except marshmallows; spread over chocolate mixture. bake 25 to 30 minutes or until toothpick inserted in center comes out clean. Immediately sprinkle with marshmallows and bake 2 minutes longer. Variation: Substitute 6 ounces chocolate chips for 2 cups marshmallows.

FROSTING:

1/4 c. butter
1 oz. square unsweetened chocolate
2 oz. cream cheese
1/4 c. milk
1 lb. powdered sugar
1 tsp. vanilla