Cook the potatoes in the skins with salt, bay leaf and peppercorns, let them cool down, peel them and then dice them.
Cut the hard-boiled eggs and the pickles into fine cubes, cut the chives into rolls and add everything to the cubed potatoes.
Make a dressing from yogurt, mayonnaise and a good dash of cucumber water, season with salt and pepper and mix carefully with the salad. Let something go through. Season again to taste before serving.