Bündner Nusstorte

A favorite of mine! 

The Bündner Nusstorte (Graubünden nut pastry), also known as Engadiner Nusstorte, is a traditional sweet, caramelised nut(generally walnut) filled pastry from canton Graubünden in Switzerland. The modern filled Nusstorte was first widely available in the 1960s though it was invented in the 1920s. While the Nusstorte is associated with Graubünden, the nuts are always imported because Graubünden's climate will not support nut trees. (Wikipedia)