Balut is the most popular one, yet most difficult Filipino food to eat for many foreign travellers. In most of the streets here in the Philippines you can easily get this egg being sold at night by street vendors on a bike who roam each street.Balut is just a boiled duck egg. However, a travel guide listed it as one of the most challenging food for me and considered. Why? What makes it difficult to eat is the fact that it has a fertilized embryo of a duckling inside, which you eat along with the rest of the egg’s content. Don’t worry as Balut is gently cooked and clean to eat, except for the fact that you have to eat the whole thing beak, feathers and all.