I used mixed ideas from different cakes on your website for a hamburger cake. I baked a yellow cake & divided it between a Pyrex bowl & an 8 inch round pan. I baked a chocolate cake in an 8 inch round pan & used the rest of the batter for cupcakes.
The yellow cake in the bowl was for the top bun & I frosted the top of it & the sides of the bottom bun in buttercream tinted with Wilton ivory. I frosted the top of the bottom bun with white buttercream that I slopped on there to look like mayo.
The chocolate cake (patty) was frosted with chocolate frosting that had crunched up cookies mixed in it to make it look jagged like meat. I tinted coconut green for the lettuce, used yellow fondant that I bought & cut it into triangles for the cheese. Then I bought Wilton’s red & yellow gel icing in a tube for the ketchup & mustard.
Last of all, I piped little sesame seeds on the top of the bun with white buttercream. I served it on a metal beer tray that had a piece of parchment paper on it. The crowd went wild! It was yummy too, except for the fondant!