Oysters Rockefeller is a popular American appetizer consisting of oysters served on half-shells that are topped with ingredients such as butter sauce, bread crumbs, and various green herbs such as parsley. They are then either broiled or baked.
The appetizer was invented in 1899 in America's oldest family-run restaurant called Antoine's in New Orleans, when Jules Alciatore, the original owner's son adapted his father's signature dish known as escargot Bourguignon, but he replaced the snails with oysters, a local food source that was abundant in the area.