Since preparing a Thanksgiving feast on a barbecue isn’t traditional, why finish it up with the usual pumpkin pie? This layered dessert from Nancy Gerlach is unique in that it can be cooked on the grill like the rest of the meal. The finished dessert has a cake-like topping and a chocolate syrup which can be served with whip cream on top. Place it on the grill while you are indulging with your turkey, and it will be ready to serve at the end of the meal.