'She who crumbles' is a traditional recipe from Mantua (although some say Emilia-Romagna), dating back to the 17th-century court of the Gonzaga family, and now popular throughout Lombardy and northern Italy: a simple cake (or tart, or cookie), with lots of butter in the dough to make it crumbly. It's often flavoured with lemon zest, or almonds, or both. Some add polenta. Many recipes have a ricotta filling. It's easy to make; here's a recipe.
In the Veneto they call it a rosegota (or rosegotta) and they also have a very similar cake called a [fregolotta].
Images by: David Goehring