Roasting potatoes with a coating involves taking raw potatoes and preparing them in a way that enhances their flavor and texture. The primary goal of adding a coating to potatoes before roasting is two-fold: to create a crispy, flavorful exterior and to protect the moisture within the potatoes, ensuring they stay tender on the inside.The process of preparing roasted potatoes with a coating begins with selecting the right kind of potatoes; usually, varieties that are high in starch, like Russets or Yukon Golds, work well because they crisp up nicely. The potatoes are cleaned, sometimes peeled depending on preference, and cut into uniform pieces to ensure even cooking.The coating for the potatoes generally includes some sort of oil or fat such as olive oil or melted butter which aids in crisping the skin. To this, a variety of herbs and spices can be added according to taste—common choices include rosemary, thyme, garlic powder, paprika, and salt. Some recipes may include additional ingredients like mustard, cheese, or breadcrumbs to further enhance the coating.