In a large bowl, with mixer at slow speed, beat flour, sugar, butter, molasses, egg, cinnamon, baking powder, ginger, cloves, nutmeg, baking soda, and salt until well mixed. Cover and refrigerate 1 hour. With floured cookie cutters, cut dough into shapes. Reroll trimmings and continue to cut shapes. Bake 8 minutes, or until very lightly browned.
Transfer cookies to racks to cool completely.