Download the Sonic Drive-In App to get your coupon valid for a Buy 1 Get 1 FREE Dark Chocolate Custard Concrete - with OREO Cookie Pieces! Add-Ins cost extra. Limit one coupon per visit.
This offer is valid through May 31st.
Download the Sonic Drive-In App to get your coupon valid for a Buy 1 Get 1 FREE Dark Chocolate Custard Concrete - with OREO Cookie Pieces! Add-Ins cost extra. Limit one coupon per visit.
This offer is valid through May 31st.