Cube your 3 lbs potatoes into 1-inch chunks without peeling — the skins hold everything together during cooking. Place them in a pot of cold salted water, bring to a boil, and cook until a fork slides through the largest piece with zero resistance, around 12-15 minutes. I learned this the hard way after rubbery potatoes ruined an entire batch years ago.
While potatoes cook, place 3 large eggs in a separate pot of cold water, bring to a boil, then remove from heat and cover for 10 minutes. Transfer them immediately to ice water — this stops the cooking and prevents that green ring around the yolk. The ice bath takes two minutes but saves the whole dish from looking unfinished.
Drain potatoes in a colander but don't rinse them. This is non-negotiable because rinsing removes the starch that helps everything bind together. I skip rinsing entirely for this reason alone.
While potatoes are still hot, whisk together 1 cup mayonnaise, 1/4 cup apple cider vinegar, and 2 tbsp Dijon mustard in a large bowl. Transfer warm potatoes to this mixture immediately — yes, while they're still hot. The warmth opens up the potato structure so it absorbs the dressing like nothing else. This is where most recipes fail because people cool everything first.
Peel and chop your hard-boiled eggs, then fold them gently into the potato mixture along with 1/4 cup sweet pickle relish, 1/4 cup finely chopped red onion, 2 diced celery stalks, 1 tbsp fresh dill, 1 tsp salt, and 1/2 tsp black pepper. Mix with a rubber spatula using an under-and-over motion so you don't mash the potatoes into paste.
Fold in 1/2 cup smoked turkey strips last, right before serving or storing. If you add them hours ahead, they release moisture that thins out the classic potato salad crowd summer recipe over time. This is a small detail, but Sandra noticed it first at a family gathering, and now I always wait until the final moment.
Refrigerate for at least 2 hours before serving, though overnight is better. The flavors meld during this resting period, transforming from decent to extraordinary. Every hour in the fridge adds depth you didn't know you needed.