I found the puff pastry sheets in the freezer section of my local Whole Foods. There are two pastry sheets per box. The sheets are wrapped separately. You can use one and freeze the other for a later date. The price was $9.99. It is well worth the price.
Here is the link for my cooking tutorial: https://www.youtube.com/watch?v=f41vBJo9iMA
I hope you will enjoy!