Sonic Drive-In promotes its SuperSONIC Double Stack Cheeseburger in a new commercial.

“Call us biaised, but if your happy place doesn’t have a diner-style burger, with two Albie patties, double the cheese and a brioche bun, it’s probably not as happy as it could be,” the voiceover says in the 15-second ad, which features the menu item in close-up.

The SuperSONIC Double Stack Cheeseburger is made with two 100% pure seasoned beef patties stuffed with melty cheddar cheese and cheddar cheese sauce and topped with grilled onions, crinkle-cut pickles, creamy mayo and classic mustard, all on a toasted brioche bun.

The fan-favorite item will be available for a limited time only. Guests can order it starting at $5.49 at participating SONIC Drive-In locations nationwide through April 30, while supplies last.