SONIC Drive-In, Atlanta, is captivating taste buds across the country this Halloween season with the launch of the Witch’s Brew Slush Float.

An enchanting addition to the ‘Flavorista Favorites’ premium beverage line, this limited-time seasonal treat is a refreshing twist on the classic caramel apple treat, the company notes. Witch’s Brew will be available at SONIC locations nationwide starting September 30, but SONIC app users can get early access by placing an order through the app starting today, it says.

“Witch’s Brew is our take on a caramel apple that stands out from the crowd with its unique blend of seasonal flavors and textures,” said Mackenzie Gibson, vice president of culinary and menu innovation at SONIC, in a statement. “This hauntingly good creation not only captures the essence of the Halloween season, but also delivers a wonderfully fun experience that is truly unique. Witch’s Brew is sure to be a seasonal favorite.”

The Witch’s Brew Slush Float combines the tartness of a green apple-flavored slush with salted caramel bubbles, topped with sweet, creamy soft serve and finished with even more salted caramel bubbles for an extra burst of flavor, starting at $3.99 for a medium size, the company says .

Additionally, SONIC consumers can enjoy this spooky treat knowing their purchase supports public education, it says. SONIC will donate a portion of all sales of SONIC Drink, Slush, Blast and Shake to support public education through the SONIC Limeades for Learning initiative, the company notes. Supported by the SONIC Foundation, SONIC has donated more than $28 million to fund local classrooms since 2009, making it one of the largest programs supporting public education in the United States, the report said.

Witch’s Brew will be available for a limited time only, September 23 through November 3, at participating locations, while supplies last.