"Cinnamon, sugar and apples are about as autumnal as a dessert can get. So why not combine everyone’s favorite cinnamon-sugar cookie, snickerdoodles, with apple cobbler? That was the thought that inspired this easy, crowd-size dessert, and thanks to the Betty Crocker Test Kitchens, this mashup works like a charm. The cookie dough crust bakes up cobbler style with a slight chewy top, fluffy center and a perfectly caramely bottom where the spiced apple mixture melds with the crust. So, you end up with deluxe apple c..."