Hard-Boil the Eggs: Place the eggs in a saucepan and cover them with cold water. Bring the water to a boil, then reduce the heat to a simmer. Cook for 9-12 minutes. Once done, transfer the eggs to an ice bath to cool completely. This will make them easier to peel.
Peel and Chop: Once the eggs are cool, peel them and chop them into small pieces. You can use an egg slicer or a knife for this step.
Prepare the Dressing: In a bowl, combine the mayonnaise, Dijon mustard, white vinegar, salt, and black pepper. Mix until the dressing is smooth and well blended.
Combine with Eggs: Add the chopped eggs to the dressing and gently fold them together until the eggs are evenly coated.
Add Veggies: Stir in the finely chopped celery, red onion, and fresh parsley if you're using it. These add a delightful crunch and flavor to the salad.
Chill: Cover the Egg Salad and refrigerate it for at least 30 minutes. Chilling allows the flavors to meld and makes the salad even more delicious.
Serve: When ready to serve, garnish with a sprinkle of paprika for a pop of color and flavor. You can enjoy Egg Salad on a sandwich, in a wrap, on crackers, or as a salad topping.