Preheat the oven to 375 degrees F.
In a large bowl, toss the potatoes with the garlic, rosemary and oil. Season, to taste, with salt and pepper. Spread the potatoes out in an even layer on a baking sheet. Roast until golden and cooked through, turning occasionally, about 35 to 40 minutes. Transfer to a serving bowl and serve.
Recipe courtesy of Sunny Anderson, 2009