Sonic welcomes 2018 by offering a free small classic shake with the purchase of a Cheeseburger or Footlong Quarter Pound Coney at participating locations.
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Available in seven varieties, Sonic’s Classic Shakes feature real ice cream hand-mixed with your choice of flavor.
The Footlong Quarter Pound Coney features a footlong hot dog topped with warm chili and melty cheddar cheese in a soft, warm bakery bun.
Sonic’s Cheeseburger features a pure beef patty, American cheese, pickles, chopped onions, shredded lettuce and hand-sliced tomatoes, plus your choice of mustard, mayo or ketchup all sandwiched between a soft bakery bun.
Image – Sonic