Ribeye is a piece from the rib edge of expensive marbled beef, with a cross-cut resembling the shape of an eye. Hence the name is ribeye. Usually the beef from Australia, New Zealand and the United States is the best. Due to the high marbling, there is enough fat in ribeye, so it’s very soft. '
Read the recipe here http://foodnchef.com/poached-in-chili-broth-sliced-u-s-prime-ribeye-recipe/