Calling them “New and Improved,” Sonic Cheeseburgers now come served with ketchup and mayo between the buns.
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As per Sonic:
“Sonic Cheeseburgers and SuperSONIC Double Cheeseburgers are new and improved! Bite into 100% pure beef, melty American Cheese, chopped Iceberg lettuce, crinkle cut pickles and hand-sliced tomatoes all served on a toasted bakery bun with creamy mayo and ketchup. Hot and melty, just the way you want it!”
You can find the “new and improved” saucy cheeseburgers at participating Sonic locations nationwide.
Image – Sonic