Drizzle the potatoes with the olive oil, then sprinkle with chipotle seasoning, salt, pepper and garlic powder. Sprinkle on the brown sugar. Toss and stir so all of the pieces are coated. Roasted the potatoes for 20 minutes. Remove the dish from the oven and gently flip the potatoes, roasting again for 20 minutes. The potatoes should be tender, caramely and charred in some places.