Sonic Drive-In is kicking off the NFL season with a sizzling play it hopes will score big with fans: A buy-one, get-one-free deal on its Double Sonic Smasher burger.
The Double Sonic Smasher, hand‑smashed and grilled to crispy‑edged, features two seasoned Angus patties layered with melted cheese, diced onions, crinkle‑cut pickles, and the chain’s signature Smasher sauce, all served on a soft potato bun.