boil, then cover and remove from heat. Let sit for 10–12 minutes. Transfer to cold water, peel, and chop.
Step 3: Mix the Dressing
In a small bowl, whisk together the mayonnaise, mustard, apple cider vinegar, sugar (if using), and celery seed. Taste and adjust the seasoning.
Step 4: Combine Everything
In a large bowl, combine the cooled potatoes, chopped eggs, celery, relish/pickles, and onion. Pour the dressing over and gently toss until well coated.
Step 5: Chill and Serve
Cover and refrigerate for at least 2 hours to
