On a lightly floured area, roll one puff pastry sheet at a time into a 12×12 square
Using a sharp knife, cut the dough into 9
Repeat with the other pastry dough for 18 pieces total
Add about 2 tablespoons of the chicken and cheese mixture to the center of each square
Fold the dough inward from each corner, touching in the center
Place all the pastries on a baking sheet lined with parchment paper
Place the tray in the refrigerator to chill the dough for 30 minutes