Baking potatoes are a popular side dish and can be prepared in a variety of ways. Two of the most common types of potatoes used for baking are Idaho potatoes, also known as Idaho Russet potatoes, and Russet potatoes. Idaho potatoes are a type of potato with a light brown skin and white flesh. They are often used for baking, mashing, and frying. Russet potatoes are a type of potato with a dark brown skin and white flesh. They are often used for baking, roasting, and making French fries.