The McDouble is a hamburger sold by the fast-food restaurant chain McDonald's. It is a variation on the double cheeseburger, with only one slice of cheese placed between the two beef patties. It was introduced in 1997. From Wikipedia
The revamped menu, launching January 7, will include $5 Meal Deals and a 'Buy One, Add One for $1' offer to attract budget-conscious diners.
