Which burger is known for being a "double" burger on the menu?

The Double Quarter Pounder is specifically designed as a "double" burger, featuring two quarter-pound beef patties, which distinguishes it from other items on the menu. This burger not only offers a substantial protein content but also has a distinct flavor due to its larger beef portions compared to single-patty options. The naming convention itself—"Double Quarter Pounder"—highlights the fact that it contains two patties, emphasizing the size and heartiness of this burger, which appeals to those looking for a more filling meal.

In contrast, while other burgers like the Big Mac and McDouble might contain multiple patties or variations, they are not marketed with the same emphasis on the double aspect. The Big Mac features a unique sauce and a different build with its three-piece bun, while the McDouble has an entire structure that differs from the Quarter Pounder classification. The Cheeseburger is a single-patty offering that does not have the "double" designation at all. Thus, the Double Quarter Pounder clearly stands out as the burger known for its double stack of patties.