The SuperSonic Double Stack Cheeseburger features two 100 percent pure seasoned beef patties stuffed with melty cheddar cheese and cheddar cheese sauce, and topped with grilled onions, crinkle-cut pickles, creamy mayo and classic mustard on a toasted brioche bun.
The returning fan-favorite cheeseburger last appeared on Sonic’s menu back in 2018.
You can find the SuperSonic D…
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