Pizza bianca

Pizza bianca or white pizza is a variety of pizza which omits tomato sauce from the equation, often substituting it with pesto or sour cream. In Rome, pizza bianca is prepared with no sauce whatsoever, and it is instead topped with salt and olive oil, while chopped rosemary is sometimes sprinkled on top. There are numerous versions of pizza bianca, and the toppings vary accordingly, but the crucial element in all of them is that there should not be any kind of red sauce on the dough.