Apparently the Super Blood Moon left a little present behind. Burger King announced it will start selling a Halloween-themed burger with a black bun.
The A.1. Halloween Whopper Sandwich has the famous steak sauce baked into its bun, giving it both a black hue and a black pepper flavor. The sauce will also dress the burgers.
Burger King has sold a similar burger in Japan that drew attention online. That instead used squid ink and bamboo charcoal.