mix sugar, peanut butter, egg, and baking soda in large bowl.
incorporate raisins and/or nuts at this point, then add oats to
consistency (dough should be moist, and retain its shape when
formed. the more oats, the dryer the dough, the harder the
cookie.
place cookies on baking sheet and bake for 10-15 minutes. the
longer the baking time, the harder the cookie.