Tarte aux Pruneaux

This tart appears in the fall when little prune plums, pruneaux in French and Zwetschgen in German, have their season. It’s linked to the interfaith holiday of Jeûne fédéral/Bettag, the federal day of Thanksgiving, Repentance and Prayer celebrated on the third Sunday in September. In Geneva, the holiday is known as Jeûne genevois and celebrated the Thursday after the first Sunday in September. These plum tarts were easy to prepare in advance, and after the day of