Rocky Road Brownies

1/2 cup margarine, softened
1 cup sugar
1 (1 ounce) square unsweetened chocolate, melted
2 eggs, beaten
1/2 cup chopped pecans
1/2 cup flour
2 (3 ounce) packages cream cheese, softened
1/4 cup margarine, softened
1/4 cup sugar
1 egg, beaten
1/4 cup chopped pecans
1 Tablespoon flour
1/4 teaspoon vanilla
1/2 cup semisweet mini morsels
2 cups miniature marshmallows
2 (1 ounce) squares unsweetened chocolate

1/2 cup milk
1/2 cup margarine
1/4 teaspoon vanilla
4 cups powdered sugar

Cream 1/2 cup butter and 1 cup sugar. Add next 4 ingredients and mix well. Spoon into a greased and floured 9X13 inch pan. Set aside. Combine cream cheese, 1/4 cup butter, and 1/4 cup sugar. Add 1 egg, 1/4 cup pecans, 1 Tablespoon flour, and 1/4 teaspoon vanilla; mix well. Spoon carefully over chocolate layer in pan (DO NOT MIX LAYERS TOGETHER). Sprinkle chocolate morsels over cream cheese layer. Bake at 350 degrees for 35-45 minutes. Remove from oven and cool slightly. Top with marshmallows, then combine 2 squares chocolate, milk, and 1/2 cup butter on top of double boiler or in a heavy saucepan. On low heat (once water is boiling in double boiler); cook until chocolate melts, stirring occasionally.