BAR:

1/2 c. butter
1 square or envelope (1 oz.) unsweetened chocolate
1 c. sugar
1 c. Pillsbury's best all-purpose flour
1/2 to 1 c. chopped nuts
1 tsp. baking powder
1 tsp. vanilla
2 eggs

FILLING:

8 oz. pkg. cream cheese, softened (reserve 2 oz. for frosting)
1/2 c. sugar
2 tbsp. flour
1/4 c. butter, softened
1 egg
1/2 tsp. vanilla
1/4 c. chopped nuts
6 oz. pkg. (1 c.) semi-sweet chocolate pieces, if desired

FROSTING:

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

Preheat oven to 350 degrees. Grease and flour 13 x 9 inch pan. In large saucepan over low heat, melt 1/2 cup butter and 1 ounce chocolate. Add remaining bar ingredients. Mix well. Spread in prepared pan.

In small bowl, combine 6 ounces of cream cheese with next 5 filling ingredients. Blend until smooth and fluffy. Stir in nuts. Spread over chocolate mixture. Sprinkle with chocolate pieces.

Bake 25 to 35 minutes or until toothpick inserted in center comes out clean. Sprinkle with marshmallows and bake 2 minutes longer.

In large saucepan over low heat, melt 1/4 cup butter, 1 ounce chocolate, remaining 2 ounces of cream cheese and milk. Stir in powdered sugar and vanilla until smooth. Immediately pour over marshmallows and swirl together.

Yield: About 3 dozen bars.

(If using Pillsbury's best self-rising flour, omit baking powder.)