Method 2: Heat the oil in the pan over medium-high heat. Add the potatoes and sear for about a minute, until lightly golden brown. Flip or toss the potatoes and sear for another minute. Sprinkle the salt, pepper, minced garlic and rosemary and stir well to ensure that the potatoes are properly coated. Transfer the pan to the oven and roast for about 20-25 minutes, until the outside is deep golden brown and the inside is tender. Flip the potatoes once after about 10-12 minutes.