Bolo do Caco

Bolo do caco is a round flatbread traditionally produced on the islands of Madeira and Porto Santo. It is shaped like a cake and thus called bolo. It is traditionally cooked on a caco, a flat basalt stone slab. The bread is usually served with garlic butter, or eaten as a sandwich with octopus, espetada, milho frito or as a prego (steak) sandwich. (Wikipedia)