Mix flour and salt. Add shortening and mix by rubbing flour and shortening between palms of your hands.
Add water a little at a time, mixing constantly until dough sticks together but not to the bowl.
Roll into balls and place in baking dish. Cover with moist paper towel to keep them from drying out.
Roll out into tortilla
Bake on griddle until done on one side
Flip and finish browning on the other side.