Mondongo is the Colombian tripe soup: beef tripe cleaned with lemon, boiled with baking soda, then cooked with pork, chorizo, cassava and potato until thick. It belongs to Antioquia and the coffee region, where it is weekend food. Closer to a meal than a soup. Serves six.
Add the potato and cassava at the end, as in step 5: they cook much faster than the tripe and disintegrate if they go in early. You can leave the pot semi-covered for the last 10 minutes, which is also enough time to finish chopping anything you have left.