Neapolitan pizza and pizza Margherita DOP made with tomato, buffalo mozzarella from Campania, basil and extra virgin olive oil. The pizza napoletana is a Traditional Speciality Guaranteed (TSG) product in Europe. The TSG certification attests that a particular food product objectively possesses specific characteristics which differentiate it from all others in its category, and that its raw materials, composition or method of production have been consistent for a minimum of 30 years. Neapolitan pizza Neapolitan pizza (Italian: "pizza napoletana") is a style of pizza made with tomatoes and mozzarella cheese. It must be made with either San Marzano tomatoes or Roma tomatoes,
San Marzano Oliveto to the history of Canelli. All were involved in the struggle between Asti, Alessandria and the Marquisate of Montferrat. From the mid-14th century San Marzano Oliveto was a fief of the Asinari, who also owned Costigliole d'Asti, Moasca and other villages. In 1280 Bonifacio Asinari, a rich merchant from Asti, left his wealth to his children, Bonifacio and Tommaso, who subsequently became the owners of San Marzano. In 1771, Philip Valentino Asinari became the first Marquis of San Marzano and Caraglio; his son Filippo Maria Antonio became a State Councilor, sent by Napoleon Bonaparte as ambassador to Berlin. In 1808