The new burger features shredded cheddar cheese and warm cheddar cheese sauce layered between two grilled beef patties and served with mustard, mayo, crinkle-cut dill pickles, and grilled onions on a toasted brioche bun.
You can get one along with a side of medium Tots for $2.99 (may vary).
Like Sonic's regular Cheeseburger, there's also a SuperSonic version with two quarter pound beef patties.
Photo via Sonic.