15 is just a nicer sounding number than 16.... omg #6..... They would have saved time on that article if they would have just said "get your favorite candy bar and put it where the chocolate part goes."
you can make smores on a grill, they just don't come out golden. You can make them in a toaster oven too. Just put them on some aluminum foil and toast but watch them carefully as they can burn or catch fire.