1. Scrub the potatoes clean and place them in a pot of heavily salted cold water covered by 1 inch. Bring to a boil over medium-high heat and cook until they are just barely fork tender about 15-20 minutes. See tips below.
2. While the potatoes boil, chop the dill finely. In a large mixing bowl, combine the mayonnaise, sour cream, cider vinegar, kosher salt and chopped dill and stir to combine. Place in the refrigerator to chill while you wait for the potatoes to cook.
3. Once the potatoes are cool enough to handle, cut them into quarters. (I find this offers the best texture when eating the salad.) If you have some that are on the larger side, you may have to cut them into a few more pieces than that.
4. Gently stir the cut potatoes into the creamy salad dressing until they are all coated. Chill for at least one hour. Top with more fresh dill when serving.
This was great!