Steamed cheeseburger

A steamed cheeseburger, also referred to as a steamer or cheeseburg, is a hamburger topped with cheese that is cooked via steaming and originally only served by restaurants in central Connecticut in the United States. Despite it now being available elsewhere, it is still difficult to find outside that area. What makes the steamed cheeseburger different from typical cheeseburgers is the way it is prepared. Instead of being fried in a pan or grilled on a grill, it is steamed in a stainless-steel cabinet containing trays that hold either a hamburger patty or a chunk of cheese. This method of cooking makes the fats in the meat melt away and they are then drained from the tray once the patty is fully cooked. The end result is a moist, juicy burger which is then served by scooping the meat onto a bun and then pouring the melted cheese over the meat. Various customary toppings can then be added to the burger.

Source: Wikipedia