Bolo di caco

Hailing from Madeira, this rustic, leavened bread is prepared with wheat flour, mashed sweet potatoes, water, and salt. Traditionally baked on large basalt stone slabs, bolo do caco is typically flat and round, though it can vary in size. It is the most common bread variety on Madeira that is usually served as a warm appetizer with garlic butter spread, but it can also be enjoyed as a sandwich or an accompaniment to various traditional Portuguese dishes.