In a medium bowl, whisk together the mayonnaise, mustard, pickle juice, salt, pepper, paprika, and cayenne until well combined.
Coarsely chop the hard-boiled eggs; fold into the dressing with the onion, pickles, chives, and dill.
Cover and refrigerate the egg salad until ready to serve.
Sprinkle the salad with extra chives, salt, pepper, and paprika.
Serve on sandwiches, on crackers, or straight from the bowl.
