Make brownies as box directs. Spray 13x9. Heat oven to 350 degrees.

Cream the cream cheese with mixer til creamy. Add sugar, egg, vanilla, mix well. Pour the brownie batter in the 13x9 pan and drop the cream mixture by table spoonfuls on the brownie mixture, and swirl with a knife.

Bake 35-40 minutes or until cream cheese mixture is lightly browned. Cool completely before cutting. Keep Refrigerated.