Ricotta and Sour Cherry Tart

The little gem that is the kosher bakery Boccione, in the Jewish quarter in Rome, makes a few distinctive desserts, some of which are not much to look at but are delicious. The ricotta and sour cherry tart is one of them, and if you want to buy one, you’d better go in the morning as they usually sell out by lunchtime. Boccione’s version is a closed pasty or pie filled with the wonderful ewe’s milk ricotta typical of Rome, and visciole, sour cherry (jam), which is a little tart in