Fondant covered with fondant bacon, cheese and pickles on the side because my husband always gives me the ones from his burgers. Three cake layers- used yellow cake for buns and chocolate for burger. Buttercream "ketchup"only because I made the cake the way my husband likes his real burgers. Had just watched an episode of Ace of Cakes where Duff said they used Crisco mixed into the fondant to give it that realistic shiny look. This was one of my favorites and I had a blast making it- I can't always say that!