Jack in the Box wants the Smashed Jack to be the "best burger" in the fast-food industry. It's off to a great start. Two weeks after launching, the Smashed Jack has become a fast-food unicorn.

Jack in the Box's new Smashed Jack burger sold out in two weeks and is currently impossible to find. It took two years to develop the burger, which features a ¼-pound smashed-style beef patty. Chief ...

In a bold move, Jack in the Box Inc. JACK is shaking up the fast-food landscape with Smashed Jack burger, a 1/4 lb patty innovation that combines the trend of smash-style burgers with high-quality ...