The pistachios I brought from Bronte in Sicily last summer are just about to end. I bought 4 kilograms that I used in a variety of desserts. I saved the very last pistachios for a special dessert that won my heart (and stomach) at the end of the trip: cassatina. A festive Sicilian cake filled with sweet ricotta cream, covered by green pistachio marzipan and decorated with candied fruits.