1Place the potatoes between two chopsticks and slice them thinly without cutting all the way through.
2Parboil the potatoes in salted water for 5–7 minutes, then drain and set aside.
3In a small pan, cook 3–4 finely chopped garlic cloves, a handful of parsley, 2 tablespoons of butter, and 2 tablespoons of vegetable oil over low heat for 5 minutes.
4In a mixing bowl, combine 3 tablespoons vegetable oil, 1 teaspoon garlic powder, 1 teaspoon paprika, 1 teaspoon gochugaru, 1 teaspoon oregano, and salt to taste.
5Toss the par-boiled potatoes in the seasoning mixture until well coated.
6Arrange the potatoes on a baking tray and bake in a preheated 400°F (200°C) oven for 20–25 minutes.
7Remove from the oven, brush generously with the garlic butter, and bake for an additional 20-25 minutes until crispy and golden.