Burger King Will Offer Whoppers With Black Buns

Turns out the rumor about Burger King offering black hamburger buns in U.S. stores is not just a rumor.

Starting September 28, the $4.99 “Halloween Whopper” will come with a black hamburger bun as a special promotion for Halloween.

The buns are baked with A.1., according to a news release. “Layered between the buns is savory flame-grilled beef topped with melted American cheese, ripe tomatoes, fresh lettuce, creamy mayonnaise, A.1.® Thick and Hearty Sauce, crunchy pickles, and sliced white onions.”

The news comes a year after Burger King Japan tested burgers with black hamburger buns, black cheese, black ketchup, all made from squid ink and bamboo charcoal.

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Write to Olivia B. Waxman at olivia.waxman@time.com.