Castelbuono was one of the largest villages of the Madonie circuit, a winding road in the midst of a Sicilian national park which once set the track of the legendary Targa Florio race. As pastry chef Mario Fiasconaro opened a small ice cream shop in its main square in 1953, the medieval town also gained a reputation for his citrus “granite” made with local snow from the Madonie.   Mario’s children Fausto, Martino, and Nicola helped him in the trade and learned from him the an