Tarte Tatin???Josh???s all-time favorite dessert!???is a classic French upside-down apple tart that is prepared from start to finish in just one pan. It starts with sugar that cooks in the pan until it???s caramelized, and then the apples are added and cooked until they are meltingly tender. The apple filling is then topped with pastry and the pan goes into the oven. The tarte is then inverted (to the delight of everyone watching) and served. While pie dough is the typical crust used for this tart, we???ve swapped in store-bought puff pastry for an easier preparation.