Pop-Tarts are a brand of flat, rectangular, pre-baked toaster pastries made by the Kellogg Company. Pop-Tarts have a sugary filling sealed inside two layers of rectangular, thin pastry crust. Some varieties are frosted. Although sold pre-cooked, they are designed to be warmed inside a toaster. They are usually sold in pairs inside foil packages, and do not require refrigeration.
Popular flavors include chocolate, apple, frosted blueberry, frosted strawberry, frosted brown sugar cinnamon, cherry, and S'mores.
Pop-Tarts are Kellogg's most popular brand to date in the United States, with millions of Pop-Tarts sold each year.^[1] They are distributed mainly in the United States, but also in Canada. They can also be found in the United Kingdom and Ireland. Pop-Tarts were discontinued in Australia in 2005 and are now found only in import stores.<sup>[2]

-- wikipedia</sup>