How to make
Peel the potatoes and boil them in salted water. Once they are done, mash them and add a little of the water in which they were boiled.
The goal is to get a puree that is thick enough to be able to shape it. Add the chopped onion, crumbled feta cheese, chopped olives, mayonnaise and spices.
After mixing thoroughly, put the mixture into a plate in the shape of a pufferfish and decorate it with pickles.