Cream Cheese Brownies: 1. Preheat oven to 350 F. 2. Prepare brownie mix according to package (water, oil, eggs). 3. Pour into greased 13x9-inch pan. 4. Beat cream cheese w/ electric mixer until smooth. 5. Add sugar and mix. Add vanilla and egg and mix. 6. Place cheese mixture in dolups over the pan. 7. Cut or swirl through batter several times w/ a knife for marbled effect. Do not to over work it. 8. Sprinkle chocolate chips on top of brownie (optional). 9. Bake for 35 to 40 minutes.