According to an Italian food historian, tomato sauce on pizza was invented in America, not Italy - and veteran pizzaiolos in Rome are furious at the claim.Professor Alberto Grandi of the University of Parma in Italy argues that "pizza rossa" - or red pizza with tomato sauce - was invented when Italian immigrants took advantage of newly discovered ingredients on American soil to improve them.The food historian describes the alleged origins of pizza in his and Daniele Soffiati's book "La Cucina... Read this story
