A moon pie or MoonPie is a pastry which consists of two round graham cracker cookies, with marshmallow filling in the center, dipped in chocolate or other flavors. The traditional pie is about three inches in diameter. A smaller version exists that is about half the size, and a Double-Decker MoonPie of the traditional diameter features a third cookie and attendant layer of marshmallow. The four main flavors are chocolate, vanilla, strawberry, and banana. Double Decker MoonPies also come in lemon and orange; MoonPie Crunch comes only in peanut butter or mint. read more