Using a food processor, combine flour, salt, and butter until the mixture resembles coarse crumbles (if the dough is too sticky, you may add the additional 1/4 cup flour)

Add the milk and process until the dough begins to come together

Refrigerate dough until ready to use

Roll out dough on a floured surface (remember to roll out larger than the 9 inch pan you will be using)

Lay dough into a buttered, 9-inch pan and trim edges

Bake at 375 degrees for 12-15 minutes or until the crust is set

Set aside to cool before filling