The Watermelon Slush was last available in 2019, while the Lemonberry was offered in 2020. The latter includes real strawberries and lemon juice for a fresh flavor profile, as the brand notes.

The fan favorites will be available on Sonic's menu starting May 27, Sonic said. Though availability and prices vary by location, the Watermelon Slush starts at $2.79 for a medium and the ...

Some fans even started a Change.org petition urging the company to bring back the Watermelon Slush. The petition had 2,842 verified signatures as of May 20. What Sonic slushes are returning and when?