Preheat the oven to 400°F. Line a baking sheet with parchment paper.
In a large mixing bowl, toss the potatoes with the olive oil. In a small bowl, combine the flour, salt, and black pepper and stir to mix. Sprinkle the potatoes with the mixture and toss to coat evenly. Arrange the potatoes on the prepared pan and roast for 1 hour.
Yield: about 12 servings