Fries are batonnet or allumette-cut deep-fried potatoes, originating from either Belgium or France. They are prepared by cutting the potato into even strips, then drying and frying it, usually in a deep fryer. Most french fries are produced from frozen russet potatoes. French fries are served hot, either soft or crispy, and are generally eaten as part of lunch or dinner or by themselves as a snack. They are often salted and may be served with ketchup, vinegar, mayonnaise, tomato sauce, or other local specialities. They can be topped more heavily, as in the dishes of poutine or chili cheese fries.