For the hard-boiled eggs:
Place the eggs in a saucepan large enough to keep them in a single layer. Cover the eggs with water, and about 1” over the tops. Place the saucepan over medium heat.
As soon as the water begins to boil remove the pan from the heat and cover with a lid. Leave the eggs in the pan for 12 minutes.
After the 12 minutes pour out the hot water and add ice water to quickly cool the eggs and stop them from cooking further.
For the deviled eggs:
Peel the eggs then slice them in half lengthwise. Carefully remove the yolks and place them in a mixing bowl. Transfer the egg whites to a rimmed sheet pan and refrigerate while you make the filling.
Add the mayonnaise along with the mustard to the egg yolks. Toss in the kosher salt, the black pepper and the potato flakes.
Using an immersion blender whip until the egg yolk mixture is smooth. You can also cream the egg yolks with an electric mixer.
Pipe or spoon the egg yolk filling into the cavity of the egg white, about 2 tablespoons per egg white.
Top with your favorite garnish and dust with a sprinkling of smoked paprika.
If you’re not planning on piping the filling you can mash the yolks with a fork then fold in the other ingredients. Then spoon the filling into the egg whites.