Preheat oven to 350*

spray with cooking spray

Combine brownie mix, oil, water and 2 eggs.

Spread brownie batter into the prepared pan.

Bake 15 minutes or until the top of brownie is shiny and center is almost set.

While that is baking beat cream cheese, sugar and vanilla in a large bowl on medium speed until well blended.

Add sour cream and mix well.

Add the final 3 eggs, one at a time, mixing on low speed after each egg just until well blended.

Pour over partially baked brownie in the pan. (Filling will come almost to top of the pan).

Bake 40 minutes or until center is almost set and let cool.

Refrigerate 4 hours or overnight.

Let stand at room temperature for 30 minutes before serving.

Refrigerate leftovers.