Mix cream cheese, 1 cup sugar, pecans and vanilla extract until smooth and creamy.
Mix 1/2 cup brown sugar and 1/2 cup cinnamon and divide in half.
Melt stick of butter in the microwave..
Spread 1 can cresent rolls (pinch seams together) in bottom of a well greased 9 X 13 X 2 glass baking dish or pan.
Spread 1/2 of the melted butter over cresent rolls.
Sprinkle 1/2 of the sugar and cinnamon mixture over butter.
Spread cream cheese mixture on top of rolls.
Spread second can of cresent rolls (pinch seams together) over the top of cream cheese mixture.
Spread rest of the melted butter over the top of cresent rolls.
Sprinkle the other half of cinnamon and sugar mixture over top of cresent rolls.
Bake at 350 degrees for approximately 20 - 25 minutes until top is golden brown.
Cool the bar on a wire rack and then place in refrigerator for a few hours or overnight. Cut into squares or bars and serve.
Do not remove the cresent rolls from the refrigerator until you are ready to use them. They become soft at room temperature and are hard to unroll and spread out.
You can adjust the brown sugar and cinnamon to suit your taste. More sugar or more cinnamon. You may also use granulated sugar if desired.
I have also put six regular size Hershey bars on the bottom layer of cresent rolls (after spreading the butter and sugar-cinnamon) before spreading the cream cheese mixture.
You may substitute other flavoring for the vanilla extract. For example lemon flavoring will produce a nice lemon bar.