The primary ingredient in French fries is the potato. French fries are typically made from starchy potatoes, which undergo a process of cutting, frying, and sometimes seasoning. Potatoes are favored for their high starch content, which contributes to the fries' optimal texture—crispy on the outside and fluffy on the inside. Different varieties of potatoes, such as Russet and Yukon Gold, are commonly used for frying due to their favorable properties. French fries can be served in various styles, from classic thin-cut to thicker wedges or crinkle-cut, and are often paired with condiments like ketchup or mayonnaise.