I was going to a BBQ and wanted to make something different. So this Hamburger Cake is what I came up with. I used a 9 inch round pan for the bottom bun and burger part of the cake. I also used the Wilton ball pan for the top of the bun (only one half of the pan).
I colored buttercrean with brown food coloring (bun) and chocolate icing for the burger. I set some buttercream aside to color red for ketchup, green for lettuce, Yellow for cheese or mustard. I took the 9 inch cake and cut it in half, bottom for bun and the other for burger. The rest is just making it look like a burger.