This is a fun and easy way to cook this wonderful Filipino cake.
If you do not have access to a steamer: Preheat oven to 350 degrees F (175 degrees C) oven. Pour your batter into greased muffin tins and place the tins into a large high sided pan; place onto the rack of the preheated oven. Carefully pour boiling water into the large pan, so that it reaches half way up the sides of the muffin tin. Bake until a toothpick inserted in the center comes out clean, about 35 minutes.