Sonic Drive-In is bringing back some summer favorites on popular demand.. The fast-food chain says it "is dialing up the summer vibes with the return of two legendary slushes" - Watermelon and ...

While all of the drinks were pretty good, I have my favorites. The blueberry lavender flavor wasn't too overpowering, but it tasted slightly artificial.

Sonic Drive-In is bringing back Watermelon and Lemonberry Slushes for a limited time due to popular demand. The fast-food chain is also introducing Cheesy Garlic Pepperoni Bites. Half-price shakes ...

While the Lemonberry Slush has a classic SONIC Slush that is swirled with real strawberries and squeezed with real lemon. It has a starting price of $3.29 for a medium cup.