Or the burger and additionals altogether, and just order a piece of cheese? Finally, would McDonald's just serve us a Big Mac box with nothing inside, which we pay £3.19/ $4 for? Last year ...

you can add a steamed bun to any order, including a McChicken, McRib or Big Mac. The restaurant uses its steamer to heat the bun with—no surprise here—steam for exactly 11 seconds. The end ...