Prepare the butter you’ll use for laminating the dough.
For this step, I like to use my 9 x 9” brownie pan and a pair of gloves. Line the brownie pan with cling wrap.
Place the butter in the pan and press all the butter into one even layer (the reason for the gloves!).
Lift it out of the pan using the cling wrap, then wrap the butter securely on all sides.
Place the butter in the fridge and let chill for 1 hour, or until it’s quite cold but still flexible.
Once the butter is chilled, you can start rolling out the dough (but leave the butter in the fridge for the moment).
On a lightly floured surface, roll out dough to approximately 10” x 24”.
Get the butter from the fridge, remove the cling wrap, and place it in the center of your rolled out dough.
Then, fold the sides of the dough over the top of the butter. Cut off any overhanging edges of dough from the top and bottom.
Turn the dough 90 degrees and roll out the dough to approximately 10” x 24”. Then, fold it in thirds again, wrap in cling wrap, and chill in the fridge, laid flat, for 30 minutes.
After 30 minutes, remove the dough from the fridge, turn it 90 degrees (as in the photo above) and again roll out the dough to approximately 10” x 24”. Then, fold in thirds again, wrap in cling wrap, and chill in the fridge, laid flat, for 30 minutes.
After another 30 minutes, repeat the above steps for a third time. Then, wrap it in cling wrap and chill in the fridge, laid flat, overnight (at least 8 hours, up to 24 hours).