The Mars Candy Company introduced the world to the Marathon Bar in 1973. The treat consisted of chewy caramel, braided to resemble a long pretzel, which was then dipped in a luxurious layer of milk chocolate.
What was great about this candy besides the taste, was that it took a long time to eat.
Unfortunately, the Marathon Bar didn’t last on store shelves quite as long. By 1981, the last of these memorable candy bars left the sweets aisle for good, and fans have never stopped mourning.
This is the closet I have found to the Marathon Bar
Just Me Being Me 