This is my one and only brownie recipe from a box mix. They are good and easy to make when I am in a hurry. I started making them with a Duncan Hines mix, lately I prefer a Ghirardelli Brownie mix. Be sure to use a mix that makes a 9X13 pan of brownies.
Cream Cheese Mixture
12 ounces cream cheese
3 tablespoons margarine
¼ cup sugar
1 tablespoon flour
½ teaspoon vanilla
Beat the above ingredients together until smooth.
Mix a brownie mix following the directions for cake like brownies
Pour ½ the brownie mixture into a greased 9X13 inch pan. Drop cream cheese mixture over the brownie mixture by spoonfuls, spoon remaining brownie mixture here and here. Pull a knife through in wide curves to create a swirled appearance.
Bake at 350 degrees for 35-40 minutes
Melt 2 tablespoons butter. Stir in 1 tablespoon cocoa until dissolved. Add 1 cup powdered sugar, 1 tablespoon milk and 1 teaspoon vanilla. Stir until smooth. Spread on cooled brownies.