Potato chips (also called potato crisps in the United Kingdom and Northern Ireland) are thinly cut potatoes that have been baked or fried and lightly salted or seasoned. Some popular flavours 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".