This article was originally published on guiltyeats.com as Sonic shakes up its $1.99 Menu with new options.

The shop now button on the sponsored posts allows users to receive the new square shakes from Sonic exclusively at the festival. Labeled as “the world’s first shakes designed for Instagram ...

In spring of 2016, SONIC introduced its new line of Creamery Shakes with elevated and high-end flavors like Buttered... We’re long-term subscribers to WARC and it’s a tool we use extensively. We use ...

It definitely stays true to its old-school drive-in restaurant feeling with a robust menu of burgers, fries, shakes ... spring menu launch. Sonic just added two new square burgers and a creamsicle ...