Preheat oven to 350 degrees and arrange racks with one in the middle and one in the upper third of the oven.
Combine flour, ginger, baking soda, cinnamon and salt.
Cream shortening and gradually add sugar, beating until fluffy. Add egg and molasses and beat until blended.
Sift dry ingredients over creamed mixture and beat until smooth.
Roll dough into balls and dip into sugar on one side. Place sugar side up on an ungreased baking sheet about 2 inches apart.
Bake for 12 minutes. Switch pan locations at halfway point if desired to ensure both sheets cook evenly.