In a large mixing bowl, add 2 cups of flour and use a whisk to break up the clumps. Add the salt and whisk together.

Add the shortening and use a fork or pastry blender to cut it into the flour.  You may use your hands for this as well.

Once the shortening is in pea-size pieces, add half of the buttermilk and stir with a fork very gently. Gradually add the remaining buttermilk until it comes together as a sticky dough.

Pour onto a generously floured surface and form an irregular circle about one inch thick.  

Gradually add a little flour at the time and pat into the dough and fold in half. Sprinkle a little more flour, pat into the doughand fold in half.  Repeat this process a few times. 

Pat the dough out to form a circle about one inch thick. Using a biscuit cutter, dip it into the flour and cut the biscuits.

Place the biscuits in a greased/buttered cast iron skillet or on a baking sheet.

Bake at 450 degrees for about 20 minutes.