Linz, Austria is the home of the renowned Linzertorte (cake). A Linzertorte is a tart made of a nut flour dough accentuated by almonds, lemon zest, and cinnamon. The tart is traditionally filled with black currant preserves and topped with a lattice crust. Linzertortes are a traditional European Christmas pastry. The Linzertorte is one of the oldest known tarts dating from 1653. It was introduced to America around 1856. Linzer Sables employ the same recipe as the Linzertorte but instead the dough is cut into cookies and two of them form a sandwich around the preserves. The top cookie has a small cutout in its center (known as a Linzer eye), thus showing off the underlying jam. In America, raspberry has replaced black currant as the jam of choice though any fruit preserve, jam, jelly or conserve can be used to fill Linzer Sables.