something quite traditional, even if the inside isn t the traditional. reporter: what kind of cake might it be? a fruit cake is more traditional as a wedding cake, although it s very heavy, very rich. and i think maybe a younger couple like catherine and william would like something maybe like a chocolate fudge cake, something more modern. reporter: okay. but is the cake store making william and kate s wedding cake? i wouldn t be allowed to say if we had been asked to bake william and catherine s cake, i m afraid. reporter: okay. let s try another go. all news comes from the palace, i m afraid. reporter: oh, for goodness sake. anyway, another option for william, military man, is to choose a military baker for the big job. that s what his father charles did. i m talking about for his first wedding, the one to diana. the cake is chockful of marzipan. reporter: this man made their cake, david avery, a retired navy baker. i could tell my wife and family, nobody else.