Our Kitchenroundtable.net

Preheat oven to 350°F.
For first layer:
Melt butter or margarine and chocolate over low heat.
Remove from heat and gradually add sugar, blending well.
Add eggs, one at a time.
Add remaining ingredients and mix well.
Spread in a greased 9 x 13 inch cake pan.
For the filling:
Combine cream cheese, sugar, flour, butter, egg and vanilla.
Blend until smooth.
Stir in the nuts.
Spread over the chocolate layer.
Scatter the chocolate chips evenly over the cream cheese mixture.
Bake for 25 minutes. Remove from oven and sprinkle mini-marshmallows on top.
Return to oven for 5 more minutes to melt marshmallows.
Remove from oven and cool.
For the frosting:
Melt butter or margarine, chocolate, cream cheese and milk in a saucepan.
Stir in the powdered sugar and vanilla.
Spread over the cooled brownies.
Makes about 24 squares.