Steam the potatoes in their skins. In the meantime, prepare a salad dressing with the remaining ingredients.
Let the steamed potatoes cool a little, then peel and cut into thin slices. Put these one at a time directly into the salad dressing. They shouldn`t stick together.
After half an hour you will have absorbed about half of the sauce. Only now mix the salad carefully. This salad tastes best when it is lukewarm.