PHILADELPHIA Marble Brownies

1 (19.8 ounce) package brownie mix

1 (8 ounce) package PHILADELPHIA Cream Cheese, softened

⅓ cup sugar

1 egg

½ teaspoon vanilla

Heat oven to 350 degrees F.

Prepare brownie batter as directed on package; spread into greased 13x9-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 completely before cutting to serve. Keep refrigerated.