Stir together the flour, quick rolled oats, baking soda, ginger, cinnamon, cloves and salt in a large bowl.
Blend the shortening, sugar, molasses, egg and vanilla into the batter and beat well for 2 minutes with an electric mixer.
Cover and chill the dough for 30-45 minutes.
Form the dough into 1 1/2 inch balls and roll in about 1/2 cup of sugar in a small bowl.
Place the cookies 2" apart on a greased cookie sheet. You can also use parchment paper or a silicone baking sheet. Bake at 375 degrees for 8-10 minutes. Remove the cookies while they are still soft and gooey inside. When you see them start to crack they are done.
Let cookies cool for at least a minute before removing them to a cooling rack.
Makes about 2 dozen cookies.