SONIC’s Drive-In, Oklahoma City, is blending creamy ice cream and decadent cookies into one shake. Part of SONIC’s Summer Nights event, guests can purchase SONIC’s new Cookie Jar Shakes for half-price after 8 p.m. every night, the company says.

Blended with SONIC’s real ice cream, the company developed three Cookie Jar Shakes: the Chips Ahoy Choco Chunky Chocolate Shake, which blends crumbled Chips Ahoy Choco Chunk Cookies with rich chocolate syrup; the Oreo Caramel Shake, a combination of the classic Oreo cookie with the addition of caramel syrup; and the Nutter Butter Banana Shake, an amalgamation of peanut butter and banana featuring Nutter Butter cookie pieces with fresh banana. All SONIC Shakes are finished with a swirl of whipped topping and a cherry.

“What’s better than adding sweet, crunchy, classic cookies onto creamy, delightful ice cream? Hand-mixing those cookies with our real ice cream for an all new flavor experience,” said Scott Uehlein, vice president of product innovation and development for SONIC, in a statement. “We reached into the cookie jar to come up with these shakes, punching up the flavor of these classic cookies — Chips Ahoy, Oreo and Nutter Butter — with the addition of rich chocolate, sweet caramel and fresh banana to give our guests something that is both familiar and distinct at the same time.”

SONIC’s Cookie Jar Shakes will be available only for a limited time.