Pizza bianca con prosciutto is the Roman bakery sandwich in its salt-cured register: a warm sheet of oiled flatbread split open and lined with thin slices of prosciutto crudo. What defines this build, against its mortadella cousin, is that the meat brings concentrated salt and a firm chew rather than soft fat, so the bread is asked to do more cushioning. The pizza bianca is blistered, chewy, generously oiled, and seasoned with coarse salt; the prosciutto is dry, deep red, salty, and almost translucent at the right thickness. The warm crumb melts a little against the cured ham and rounds its edge, while the bread's own oil and salt frame the meat without crowding it. Without the bread's warmth and fat the prosciutto reads sharp and dry; without the ham the flatbread is just a snack. They are matched so the soft, oily bread carries an assertive cured meat.
The craft is in restraint at both halves. The pizza bianca is used while still warm and flexible, brushed with oil and finished with salt, split into a wide flat pocket so the slices sit evenly. The prosciutto is sliced as thin as it will hold together and draped in loose folds, never piled flat, because thickness here turns the salt brutal and the texture leathery. The salt of the bread is set against the salt of the ham, so an attentive builder keeps the oiling honest and resists overloading the meat. A weak version pairs cold dense bread with thick chewy slices and reads as nothing but salt; a good one is warm, lightly oiled, and layered in airy ribbons so the ham yields the moment the bread closes around it.
The near neighbours sit inside the same warm-flatbread family and each earns separate treatment rather than a line here. There is the pizza bianca con mortadella, where soft fatty sausage swaps in for the dry cured ham and softens the whole thing, the seasonal build with fresh figs set against the prosciutto, the version where a thin layer of stracciatella is spread under the meat, and the same ham carried on a rosetta rather than the flatbread. Each is the same oiled-bread-meets-cured-pork structure with one element changed, and each deserves its own article rather than being crowded in here.