After the dough has long fermented, take it out of the fridge and place it on a lightly floured surface. The flour may not be necessary, you will be able to tell if it starts sticking too much to the surface of the counter and you can add flour to the surface as needed. It can be a sticky dough.
With a rolling pin, roll out your dough to a 16”x24” rectangle. Next, take the butter block from the fridge and remove one side of the parchment paper from the butter block. Place this side down on one half of the rolled-out dough and remove the second piece of parchment paper. Next, fold the second half of the dough over the butter block and help seal the edges by rolling the dough a couple times with your rolling pin.
Next, take and fold the dough from the top down a third of the way. Then take the bottom of the dough and fold it up on top of the other third. Place the folded dough on a small parchment paper lined baking sheet, cover with plastic wrap and place in the fridge for 45 minutes.
After the 45 minutes remove your dough from the fridge and roll the dough into a large rectangle and then complete the fold again as above. Place in the fridge for another 45 minutes and then take it out and complete the last roll and fold. This is the last fold and creates 27 layers of dough. Place the dough back into the fridge after this third and last fold for 45 minutes.