This rustic cake is a delicious alternative to pie and uses one of the tastiest fruits of the fall harvest--cranberries. The basic recipe is very versatile and can be made with apples, pears, peaches, plums or any full-flavored, slightly acidic fruit. Just arrange the fruit in the skillet before you pour the batter over it. The cake is best served warm; if you can, put it in the oven just before you sit down to dinner. Recipe adapted from The Art of Simple Food by Alice Waters.