Ajiaco is a typical dish in Colombia. It has a lot of potatoes since Bogota is in the mountains and potatoes are plentiful. This recipe calls for yucca which can be found in the produce section or frozen (Goya). If you cannot find it, just use Yukon gold potatoes, both will all but disintegrate and thicken the broth. Corn on the cob is cut into 1 inch rounds and thrown into the soup. They are easier to cut if you rotate the corn, eventually the cob will break. Once you remove the cover, you'll get a burst of sweet corn aroma. An avocado half is served either on the side, so you can take a spoonful of avocado and dip it in the soup.