Blend together the flour and salt, then mix in with the butter mixture. The dough will be crumbly, so use your hands to finish combining it. Shape into a disc.
Roll dough out onto a floured surface to ¼” thick and cut out with a cookie cutter. Place on a parchment lined baking sheet and prick each cookie with a fork a few times.
Bake at 350°F for 20 minutes, or until golden around the edges. Allow to cool completely before lifting off sheet (cookies will firm up as they cool).
Notes
To make a cookie pie crust, finely crush cookies up and mix with some melted butter (just enough that mixture hold together when pinched between fingers). Press into a greased pie plate and bake at 350°F for 10 minutes. Fill as required.