Subway, the world’s largest restaurant chain, announced Thursday that it’s adding layers of smoky flavor to its menu with the nationwide launch of its new Naturally Pit-Smoked Brisket sandwich.

Subway has introduced several limited time only in-restaurant tests across the country at participating restaurants lately, such as the Beyond Meatball Marinara, freshly baked King’s Hawaiian only at Subway, and the first hand-spun Halo Top milkshake. In addition, to the popular Ultimate Cheesy Garlic Bread and Ciabatta collection.

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The new Naturally Pit-Smoked Brisket sandwich features brisket that is naturally slow-smoked for at least 13 hours. The brisket is topped with smoked cheddar cheese and barbeque sauce.

“Our naturally pit-smoked brisket is the real deal. We collaborated with some of the most talented pit masters in the country to create a one-of-a-kind taste experience that features the unmistakable flavor that comes from using real smoke and freshly baked bread.  It’s a combination that simply can’t be beat,” says Len Van Popering, Subway’s chief brand and innovation officer.

To put its new sandwich to the test, the brand traveled to a city known for its pit-smoking—Austin, Texas. Once there, Subway disguised themselves as Monty’s Smokehouse and placed the new sandwich in front of pit-smoke devotees. Customers then learned they could get the sandwich at participating Subway restaurants across the country. Check out the video below.

Starting September 5 and for a limited time only, participating Subway restaurants across the country will be serving the sandwich.