Mrs. Thurlow's Sugar and Spice Cookies

3/4 C soft shortening
1 C sugar
1 egg
1/2 C molasses
2 C all-purpose flour
1/2 t soda
1/4 t salt
1 t cinnamon
1/4 t ginger

Cream shortening (I use margarine) with sugar; add egg and molasses; mix until thoroughly blended. Sift together, then stir in flour, soda, salt, cinnamon and ginger. (You may want to chill dough at this point.) Press and mold into a long smooth roll about two and on half inches in diameter. Wrap in waxed paper and freeze. Slice with a sharp knife in thin slices about one-eighth inch thick. Place slices on ungreased cookie sheets, leaving a little space between cookies. Bake in a 350 degree oven for about 10 minutes, or until lightly browned. Makes three or four dozen cookies.