Heat oil in a big pot and fry the onion pieces until they are glazed.

Cut the potatoes and all the other vegetables into cubes and fry for a bit.

Add enough water to cover everything as well as the bouillon dissolved in a few spoonfuls of hot water.

Let everything simmer over low heat until it's soft.

Blitz with a blender until everything is smooth and there are no more chunks.

Cut hotdogs into small pieces and add to the soup.

Serve with a sprinkling of fresh or dried parsley.