Sales of the Egg McMuffin grew by double digits following the switch, according to the company. The first step in making McDonald's new-and-improved Egg McMuffin, as Foust demonstrates ...

Name a more iconic breakfast item than the McDonald's Egg McMuffin. That's okay, we'll wait. Hard, isn't it? That's because the Egg McMuffin is head and shoulders above any other fast food ...

Leading the charge of that menu, before it even became a menu, was the egg McMuffin, which was thoroughly tested between its inception in 1971 and its national rollout in 1975. In those 50 or so ...