In Chile there is this grand obsession with mayonnaise. They put it on many different types of food.
On the right is what is called a completo. A completo is a hotdog in a "taller" bun that has American salsa, sauerkraut, tomatos, guacamole (a lot), and last but not least, mayonnaise.
This obsession may have something to do with the growing rate of Type 2 Diabetes in Chile (both of my host parents suffer from the disease).