In the bowl of your stand mixer fitted with the paddle attachment, beat the cold butter until it’s broken up but smooth, about 1-2 minutes.
Place a piece of parchment paper on a work surface. Scoop the butter onto the parchment and shape the butter into a 5x8 inch rectangle. Refrigerate until the butter is chilled about 20 minutes.
On a lightly floured work surface roll the dough out to a 7x18 inch rectangle. Place the chilled butter on the bottom half of the dough leaving a 1 inch border on 3 of the 4 sides. Fold the top half of the dough over the butter to cover, then pinch the edges to seal. Tuck the overhanging dough edges under to form a neat looking tucked package.
Roll the dough into a 7 x 18 inch rectangle. Fold the top third of the dough down towards the center, then fold the bottom third on top, like a business letter. This completes 1 turn.
Rotate the dough package 90 degrees. Roll the dough into a 7 x 18 inch rectangle. Rold the top third of dough down towards the center, then fold the bottom third on top, like a business letter. Wrap the dough envelope in plastic wrap and refrigerate for 25 minutes or freeze for 12-15 minutes.
Remove from fridge or freezer. Roll the dough into a 7 x 18 inch rectangle. Fold the top third of the dough down towards the center, then fold the bottom third on top, like a business letter.
Rotate the dough package 90 degrees. Roll the dough into a 7 x 18 inch rectangle. fold the top third of dough down towards the center, then fold the bottom third on top, like a business letter. Wrap the dough envelope in plastic wrap and freeze for 12-15 minutes or refrigerate for at least 1 hour or up to overnight.