In a medium bowl add the flour and salt and stir to combine
Cut up the butter into very small pieces and add to the flour
Work the butter into the flour with a fork to try and incorporate the butter into the flour as much as you can. This will be a very crumbly mixture and you will still see pieces of butter. The end result at this point should be pea size chunks of butter at best.
Next you need to create a hole in the middle of the flour and butter mixture and add cold water
Combine this mixture to form a rough dough and shape into a square
Flour the counter/ table/ work surface and place the square shaped dough
Roll out the dough into a rectangle and fold it in three parts (bottom third and top third over the middle). Turn it by a quarter and repeat the rolling and folding process. Sprinkle with flour as needed, if dough becomes sticky. Do this about 6 - 8 times
When done, wrap the dough in plastic and refrigerate or freeze any extra pastry dough.