A potato chip (also known as a potato crisp in the United Kingdom) is a thin slices of potato that have been baked or fried and lightly salted or seasoned. Some popular flavors of potato chips are: salt and vinegar, ketchup, sour cream and onion. They are one of the most important snack foods in Western nations. In England, they are called "Crisps". In America, they are called "Potato chips".