Fiasconaro
Opened in 1953, Castelbuono's fanciest pasticceria has become world-famous in recent years for its panettone (and also for its collaborations with Dolce & Gabbana). Sample the indulgent panettone on the tables set up outside, and then have a coffee, pastry, ice cream, or small savory-filled croissants. The pricey panettone, sold in fancy tins, can be purchased here and in a retail shop across the road, which also stocks honey, chocolate, torrone nougat, and mountains of other merch.