That is how I cook the potatoes, peeled and cubed. My husband's family has always had what I call "mashed potato salad". This is how his mother made hers and not the way I grew up using the cold cooked potatoes and cubing them. So i changed my way, and now I make the famous mashed potato salad. Once in a while I get a request to make a bowl of potato salad just like husband's mother made it. You actually almost mash the potatoes with a pastry blender. Cut them up fine when still a tad warm. Then you need to add a bit of dill pickle "juice" to the salad dressing, mustard, seasonings, half and half. I have gotten used to this way. His mother was full-blooded Irish and his father was full-blooded German, so I don't know if this is from the Irish side or the German side. Or maybe it was a combination of ways as three generations lived on the home place.