Heat oven to 350°F. Prepare brownie batter as directed on package; spread into greased 13×9 inch pan. Beat cream cheese with mixer until creamy. Add sugar, egg and vanilla; mix well. Drop by tablespoonfuls over brownie batter; swirl with knife. Bake 35 to 40 min or until cream cheese mixture is lightly browned. Cool completly before cutting to serve. Keep refrigerated.

Note: For best results, do not use brownie mix with a syrup pouch.