"Philadelphia is home to one of the largest Italian-American communities in the country. Italians began immigrating to the City of Brotherly Love in the late 19th century, driven from their homes by political turmoil and a lack of opportunity. By 1910, more than 75,000 Italians lived in Philadelphia.
Back in Italy, there was a long tradition of campanilismo. "Campana" is the word for bell in Italian, and campanilismo is the idea that loyalty only extends to those who hear the same village church bells. Many Italian communities kept this insular attitude even after moving to America.
The Philadelphia tomato pie is a product of this hyper regionality. The dish is a variation of the Sicilian sfincione palermitano. And while both versions of the pie feature a chewy focaccia-like crust and simple tomato topping, the Sicilian version is often garnished with briny ingredients like capers, anchovies, and olives.
At "Cook's Country," we honor the delicious traditions of the old country with our recipe for Philadelphia Tomato Pie."

(Thanks PBS)