Hash browns or hashed browns or harsh browns are a simple preparation in which potatoes are pan-fried after being shredded, diced, julienned or riced, in the style of a Swiss Rösti. In some cultures, hash browns or hashed browns can refer to any of these preparations, while in others it may refer to one specific preparation. Hash browns are a staple breakfast food at diners in North America and the UK, where they are often fried on a large common cooktop or grill. (source)