(18 to 20 oz.) brownie mix (13x9-inch pan size)
(8 oz.) PHILADELPHIA Cream Cheese, softened
Heat oven to 350ºF.
Prepare brownie batter as directed on package; pour into 13x9-inch pan sprayed with cooking spray.
Beat cream cheese in large bowl with mixer until creamy. Add sugar, egg and vanilla; mix well. Drop by tablespoonfuls over brownie batter; swirl gently with knife.
Bake 35 to 40 min. or until toothpick inserted in center comes out with fudgy crumbs. (Do not overbake.) Cool completely.