Marbled Brownies - cooking recipe

Ingredients

19 1/2 ounces brownie mix
1 egg
1/4 cup oil
6 ounces cream cheese, softened
5 tablespoons butter, softened
1/2 cup sugar
2 eggs
2 tablespoons flour
1 teaspoon vanilla
Frosting
3 tablespoons margarine or 3 tablespoons butter
2 tablespoons cocoa
1 1/2 cups powdered sugar
2 tablespoons milk
1 teaspoon vanilla

Preparation

Preheat oven to 350* and grease 9x13 baking pan.
Mix brownie mix as directed -- adding 1 egg and 1/4 cup oil, or whatever your mix's directions say. Set aside.
Mix softened cream cheese and softened butter until creamy. Add sugar, 2 eggs, flour and vanilla.
Pour half of brownie mix into greased pan. Pour all of cream cheese mixture over this; spoon remaining brownie mix on top, and spread as best you can - it will be thick and likely won't cover all of the cream cheese layer.
Swirl together with a knife.
Bake at 350* for 35-40 minutes.
For frosting: Melt margarine or butter. Add cocoa, milk, powdered sugar, and vanilla; whisk until your desired thickness. Can add more powdered sugar for a thicker icing.
*Hint: I sift the powdered sugar into the mixture; it helps prevent a 'lumpy' appearance since it's a thinner icing.