01 -
In a large stock pot filled with cold water, add cubed potatoes with 1 tablespoon salt and bring to a boil over high heat. Once boiling, reduce heat to medium-high and cook potatoes until tender and easily pierced with a fork, about 12 to 16 minutes. Drain.
02 -
Preheat oven to 400°F (200°C) and line a baking sheet with aluminum foil. In a bowl, combine the boiled potatoes with olive oil, garlic powder, salt, and black pepper, tossing gently to coat.
03 -
Spread the seasoned potatoes in an even layer on the prepared baking sheet and bake until very brown and crispy, about 30 minutes.
04 -
In a large bowl, mix sour cream and mayonnaise. Add 1 tablespoon of dill, 1 tablespoon of parsley, Dijon mustard, and lemon juice. Reserve 1 tablespoon of scallions and add the rest along with salt and pepper to taste. Stir until combined.
05 -
Toss the roasted potatoes with the dressing just before serving. Transfer to a serving dish and top with the reserved scallions, dill, and parsley.