Place potatoes in a large sauce pan. Cover with water. Bring to a boil then reduce heat to low. Cover and cook for 10 minutes. Drain and rinse under cold water. Set aside.
In a large bowl whisk together the mayonnaise, relish, salt, mustard, paprika, garlic powder, onion powder, black pepper, brown sugar, and pepper.
Add the potatoes, scallions, and eggs. Stir until well combined.
Garnish with additional scallions and paprika if desired.