Bibingka is made with rice flour and coconut milk or water. Other ingredients can vary greatly, but the most common secondary ingredients are eggs and milk. The traditional preparation is very time-consuming. A specially made terra cotta container is lined with a single large section of a banana leaf. It is placed over preheated coals and the rice flour and water mixture is poured into it, taking care not to spill it into the container itself. Another piece of banana leaf is added to the top and covered with more preheated coals.