Pull out the puff pastry from the fridge.
Flour a surface and a rolling pin. Unfold the pastry gently. Roll dough out to 10×15-inch rectangle. Slice into 6 squares using a pizza cutter or sharp knife and ruler.
If your puff pastry comes in 1 lb sheets, then one sheet may be enough. Just make sure you can roll it out to 10 x 15 without stretching it too thin.
Recipe inspired by the one found here.