Hamburger
A hamburger (or, less frequently, a hamburg) is a sandwich containing a patty of ground, cooked meat that is almost always beef. Its origin is almost certainly American, and, along with Coca-Cola, the hamburger was once disdainfully regarded by many non-Americans as the epitome of low cultural taste. With the advent of mass marketing from fast-food chains such as McDonald's and Burger King, however, hamburgers have now spread around the world and, with variations, are consumed in every culture. Generally considered to be an informal meal or a convenience food, its meat can be grilled, fried, broiled, microwaved, or steamed, and is almost always served with condiments such as ketchup or mustard inside a bun baked specially for hamburgers.