Potato Preparation: Begin by placing the cubed potatoes into a large pot. Cover them entirely with cold water. Proceed to bring the water to a boil over medium-high heat. Continue cooking for 10-15 minutes, or until the potatoes are tender enough to be easily pierced with a fork. Once cooked, drain the potatoes in a colander and allow them to cool slightly.
Dressing Preparation: In a large mixing bowl, combine the mayonnaise, yellow mustard, and apple cider vinegar. Whisk these ingredients together until they are thoroughly blended.
Combining the Ingredients: To the prepared dressing, add the sweet pickle relish, chopped hard-boiled eggs, chopped celery, green onions, and the previously drained potatoes. Using a gentle folding motion, mix these ingredients into the dressing, ensuring that the potatoes and vegetables are evenly coated.
Seasoning the Salad: Season the mixture with kosher salt and freshly ground black pepper. Adjust the quantities to suit your taste preferences.
Final Presentation: Transfer the salad to a serving dish. As a finishing touch, lightly sprinkle the surface with paprika. This not only adds a subtle flavor but also enhances the visual appeal of the dish.