 In 1860 Joseph Malin combined deep fried fish with chips (french fries) to open the first fish and chip shop in London.Modern deep frying in the United States began in the 19th century with the growing popularity of cast iron, particularly around the American South which led to the development of many modern deep-fried dishes.Doughnuts were invented in the mid-19th century, with foods such as onion rings, deep-fried turkey, and corn dogs all being invented in the early 20th century.