In a large skillet heat oil over medium high heat. Add butter and stir until melted. Add potatoes and toss to coat. Cook the potatoes for 10 minutes, occasionally tossing and stirring them. Transfer potatoes to a baking sheet and roast in oven at 400 degrees for another 20 minutes. Bake until potatoes are golden brown and crispy. Season with salt and pepper.
Recipe Courtesy of Food Network Kitchens