Yellow Cake Batter Shake

Sonic is celebrating the arrival of spring 2022 by bringing back the Brownie Batter Shake and Yellow Cake Batter Shake. Sonic app users can enjoy a special early taste of the shakes beginning March 21 ..

Sonic is kicking off summer 2020 with the introduction of the new Brownie Batter Shake alongside last-year’s returning fan-favorite Yellow Cake Batter Shake. The new Brownie Batter Master Shake features real vanilla ice cream mixed ..