The russet potato is a large potato with dark brown skin and few eyes. Its flesh is white, dry, soft, and mealy, making it ideal for baking, mashing, and french fries. Sometimes, russet potatoes are referred to as Idaho potatoes, but that name is trademarked and can only legally apply to potatoes grown in Idaho.
Russets are commonly used in restaurants, like McDonald's, for their large size which allows for long french fries. The Russet Burbank variety is often favored, though it is more expensive to grow because it requires more water, a longer maturation time, and significant pesticide use. Russets are also nutritious, providing carbohydrates, potassium, and energy. They are rich in vitamin B6, vitamin C, copper, manganese, phosphorus, niacin, protein, and fiber. Most of the nutrients are found in the skin, so it is best to scrub the potato well and leave the peel on while cooking.