From WikiPilipinas: The Hip 'n Free Philippine Encyclopedia
Barquillos are thin rolled cookies of Spanish origin. In the Philippines, Iloilo is particularly known for its barquillos. They are made by pouring a thin batter is onto a wafer iron (barquillera). Once the wafer is cooked to a light brown it is immediately rolled while still hot. It becomes a crisp rolled cookie when it cools. Barquillos are now avilable in local flavors like ube and pandan. Sometimes they are filled with polvoron powder to make a sweet called barqueron.