Sicilian pizza  Sicilian pizza is pizza prepared in a manner that originated in Sicily, Italy. Sicilian pizza is also known as "sfincione" (; ) or focaccia with toppings. This type of pizza became a popular dish in western Sicily by the mid-19th century and was the type of pizza usually consumed in Sicily until the 1860s. The version with tomatoes was not available prior to the 17th century. It eventually reached North America in a slightly altered form, with thicker crust and a rectangular shape. Traditional Sicilian pizza is often thick crusted and rectangular, but can also be round and similar to the Neapolitan pizza. It is often topped with onions, anchovies, tomatoes, herbs and strong cheese such as caciocavallo and toma. Other versions do not include cheese. The Sicilian methods of making pizza are linked to local culture and country traditions, so there are differences in preparing pizza among the Sicilian regions of Palermo, Catania, Siracusa and Messina. The "sfincione" (or "sfinciuni" in Sicilian language) is a very common variety of pizza that originated in the province of Palermo. Unlike Neapolitan pizza, it is typically rectangular, with more dough, sauce and cheese. An authentic recipe often calls for herbs, onion, tomato sauce, strong cheese and anchovies. The sauce is sometimes placed on top of the toppings to prevent it from soaking into the thick dough. In the province of Siracusa, especially in Solarino and Sortino, the "pizzòlu" is a kind of round stuffed pizza. In the province of Catania the traditional "scacciata" is made in two different ways: a first layer made of dough covered, within the city, by a local cheese ("tuma") and anchovies or, in the region around Catania, by potatoes, sausages, broccoli, and tomato sauce. In both cases a second layer of dough brushed with eggs covers everything. Also in the region of Catania, in Zafferana Etnea and in Viagrande a typical "pizza siciliana" is a fried calzone stuffed with cheese and anchovies. In the province of Messina, the traditional "piduni" is a kind of calzone stuffed with endive, toma cheese, tomato and anchovies. There is also the "focaccia alla messinese", prepared with tomato sauce, toma cheese, vegetables and anchovies.