Pop-Tarts® are a flat rectangular toaster pastry first created by accident during the Manhattan Project. They are possibly the most dangerous breakfast food item ever introduced in the major market, with a 97%-uranium filling vacuum sealed between two layers of medium-density fiberboard, which makes them the ideal fuel-source for nuclear generators. On the top is usually a thin layer of frosting, made from either the blood of a virgin or the saliva of the three-headed canine guardian of Hell's gate, Cerberus (depending on what flavor you buy). Sometimes it's both. The main ingredient is evil. They are usually sold in pairs inside packages made of human flesh. Frosted Pop-Tarts® are not suitable for vegetarians, as they contain gelatin.