Out of curiosity, I googled this, and found a video on MSN. The ingredients for the "filling" are food processed hot dogs, gelatin, and "hot dog juice" (I guess it's the "juice" from the hot dog package). The "crust" is made from hot dog buns. The whole thing sounds gross, but I think it's the gelatin mixed with the smashed hot dogs that grossed me out the most!
♥ Life is beauty full ♥