I thought of making this cake for a special friend because he loves burger! Burger bun is marble cake and burger patty is chocolate cake. I just bought a madeira cake to make as fries coz i dont have time to bake again. All decorations are fondant except for the bday greeting. I couldnt find a brown food colouring spray so i just hand painted the bun using a small pastry brush with food colouring. (March 2012)