Mix shortening, sugar, and egg together thoroughly. Blend in molasses and water. Sift flour, soda, salt, and spices together and stir in, beating until smooth. Pour into well-greased and floured 9-inch square pan. Bake at 325 degrees (F) for 45 to 50 minutes. Cut into 3-inch squares in pan. Keep hot and serve piping hot with sweetened whipped cream or applesauce.