White pizza ("pizza bianca") uses no tomato sauce, often substituting pesto or dairy products such as sour cream. Most commonly, especially on the East Coast of the United States, the toppings consist only of mozzarella and ricotta cheese drizzled with olive oil and basil and garlic. In Rome, the term "pizza bianca" refers to a type of bread topped only with olive oil. Some white pizzas use Alfredo sauce as the pizza sauce for a better flavor.