
McDonald's has launched its Big Arch Burger across restaurants in the United States, generating widespread attention not only for its size and new sauce, but also for a viral video featuring the company's chief executive taking an unusually tentative bite.
The limited‑time offering officially debuted on 3 March 2026, following successful runs in international markets including Canada and the United Kingdom. Early reactions online suggest this indulgent menu addition is just as likely to spark social media conversation as it is to satisfy appetites.