
A Midnight Dazzler combines Häagen-Dazs Midnight Cookies and Cream ice cream with layers of hot fudge and cookie pieces so it's basically a sundae of sorts. I think their sundaes usually go upwards of $5 so it's a pretty good deal.
If you don't mind receiving promotional emails from Häagen-Dazs(or just plan on opting out shortly after), you can sign up here.
Please keep in mind that the coupon is only good for their actual scoop shops and not the supermarket. To see if there's a Häagen-Dazs shop near you, you can use their shop locator here.