A Simple and Crispy Potato Side Dish These oven roasted potatoes with duck fat and rosemary salt create a crispy, golden, and flavorful side dish that works well with almost any meal. The potatoes turn fluffy on the inside and crunchy on the outside, and the duck fat adds a rich flavor that feels restaurant quality. Because the steps stay simple, this recipe works for weeknight dinners, holidays, or any time you want a reliable potato dish that always delivers. The rosemary salt finishes the potatoes with a fragrant and savory touch that makes each bite stand out.