In a medium bowl combine the flour and salt.
Cut the cold butter into cubes and toss in the flour.
Using your fingers, cut the butter into the dry ingredients until pea sized pieces are left.
Add a couple tablespoon of water, then toss with your hands to combine.
Continue adding very small amounts of water until the dough can hold together, but is not overly wet.
Wrap the dough tightly in plastic wrap, then chill for one hour.
On a lightly floured surface, roll the dough out into a rough rectangle, fold in half, then again into quarters.
Wrap the dough in plastic wrap and chill for another 30 minutes.
Roll the dough out again into a rough rectangle and repeat the folding process.
Shape the dough into a disk, wrap tightly in plastic wrap, and chill overnight.