Chicken McNuggets (introduced in June 1980) are a fast food product offered by the restaurant chain McDonald's. They popularized the chicken nugget, which had been invented in the 1950s, and are one of the most popular trademarked items on the McDonald's menu.McNuggets, as they are commonly known, are small pieces of formed chicken that have been battered and deep fried. They are sold in packages of 4, 6, 10, and 20 (6, 9 and 20 in the United Kingdom). In Australia, they are also available in 3 packs in Happy meals and Heart Foundation approved Tick healthy meals. They come with a choice of various flavors of dipping sauce.