Ajiaco is the national dish of Colombia, a flavorful chicken and potato soup with the addition of herbs and corn. Considered a poor man's dish in the past, ajiaco must include three varieties of potatoes cooked together, abundant and inexpensive in Colombia.
It is best to use the local varieties of potatoes: the waxy sabanera, the tiny papas criollas and the soft pastusa. These varieties provide a thick and creamy texture of the final dish. Simmered in chicken or beef broth until they break down, the potatoes also provide a unique combination of flavors.
The soup is seasoned with a Colombian herb called guascas that provides an intense, grassy flavor that is of key importance for an authentic ajiaco. There is also a vegetarian version where the shredded chicken meat is omitted, and when ajiaco is done, it is often served with avocado slices, capers, rice, heavy cream, corn, and black pepper.