Neapolitan pizza (pizza napoletana): Authentic Neapolitan pizzas are made with local ingredients like San Marzano tomatoes, which grow on the volcanic plains to the south of Mount Vesuvius, and Mozzarella di Bufala Campana, made with the milk from water buffalo raised in the marshlands of Campania and Lazio in a semi-wild state (this mozzarella is protected with its own European protected designation of origin). According to the rules proposed by the Associazione Verace Pizza Napoletana, the genuine Neapolitan pizza dough consists of Italian wheat flour (type 0 or 00, or a mixture of both), natural Neapolitan yeast or high protein content (as used for bread-making rather than cakes) must be used. The dough must be kneaded by hand or with a low-speed mixer. After the rising process, the dough must be formed by hand without the help of a rolling pin or other mechanical device, and may be no more than 3 mm (¹⁄₈ in) thick. The pizza must be baked for 60–90 seconds in a 485 °C (905 °F) stone oven with an oak-wood fire. When cooked, it should be crispy, tender and fragrant. Neapolitan pizza has been given the status of a "guaranteed traditional specialty" in Italy. This allows only three official variants: pizza marinara, which is made with tomato, garlic, oregano and extra virgin olive oil (although most Neapolitan pizzerias also add basil to the marinara), pizza Margherita, made with tomato, sliced mozzarella, basil and extra-virgin olive oil, and pizza Margherita extra made with tomato, mozzarella from Campania in fillets, basil and extra virgin olive oil.