In a medium bowl, combine flour, salt, baking powder, baking soda, thyme, dill, and parsley. Using your hands or a pastry cutter, blend the cold butter into the flour until there is no longer any large clumps. Add grated parmesan cheese and stir. Using a fork, mix milk into the flour mixture until it sticks together. You may or may not need the full cup of milk. Don’t overmix! Once it forms a ball, set aside to rest for 5 minutes.