Rocky Road Fudge Bars by A Customer

Ingredients:
From Pillsbury's Best Cookies Cookbook Base:
1/2 C margarine or butter
1 oz unsweetened chocolate, cut into pieces
1 C flour
1 C sugar
1 tsp baking powder
1 tsp vanilla
2 eggs
¾ C chopped nuts
Filling:
6 oz. cream cheese, softened (from 8 oz pkg)
¼ C margarine or butter, softened
½ C sugar
2 Tbsp Flour
½ tsp vanilla
1 egg
¼ C chopped nuts
1-6 oz. pkg. (1 C) semi sweet chocolate chips
2 C miniature marshmallows
Frosting:
¼ C margarine or butter
¼ C milk
1 oz. unsweetened chocolate, cut into pieces
2 oz. cream cheese
3 C powdered sugar
1 tsp vanilla


Preparation:
"Prep Time: 25 minutes (Ready in 2 hours, 10 minutes)

1. Heat oven to 350 degrees. Grease and flour 13"x9" pan. In large saucepan, melt 1/2 C margarine and 1 oz. sweetened chocolate over low heat, stirring until smooth. Add all remaining pase ingredients; mix well. Spread in greased and floured pan.
2. In small bowl, combine all filling ingredients except nuts, chocolate chips and marshmallows. Beat 1 minute at medium speed until smooth and fluffy. Stir in 1/4 C nuts. Spread over chocolate mixture; sprinkle evenly with chocolate chips.
3. Bake at 350 degrees for 25 to 35 minutes or until toothpick inserted in center comes out clean. Remove from oven; immediately sprinkle with marshmallows. Return to oven; bake an additional 2 minutes.
4. While marshmallows are baking, in large saucepan, combine all frosting ingredients except powdered sugar and vanilla. Cook over low heat, stirring until well blended. Remove from heat; stir in powdered sugar and 1 tsp vanilla until smooth. Immediately pour frosting over puffed marshmallows; lightly swirl with knife to marble. Refrigerate 1 hour or until firm. Cut into bars. Store in refrigerator. "