Pane guttiau is a traditional flatbread originating from Sardinia. It's very similar to carasau bread, but guttiau is usually even thinner. The flatbread looks like thin leaves with long cracks, and it was originally made for shepherds who took it with them to the pastures because it keeps very well – if kept dry, it stays edible for a whole year.
The dough is rolled as thinly as possible, and it is then baked until the edges start to rise up. Pane guttiau is often brushed with olive oil and sprinkled with sea salt, then eaten as a snack. It's also commonly served with salami and cheese.