This Hamburger cake was made for my son’s 5th birthday. The theme was Spongebob Squarepants and his birthday atmosphere was set in “Bikini Bottom” (Spongebob’s town under the sea!). I wanted to make his cake instead of ordering the expensive ones from a specialty bakery.
I decided to create a “krabby patty” which pretty much looks like a typical burger. The top bun was baked in a 2 quart glass Pyrex casserole. The patty was baked using a 10 inch round pan and the bottom bun was baked in a 9 inch round pan.
I frosted the buns with homemade peanut butter frosting. ( recipe for bun frosting: 1/2 cup butter, 1 cup creamy peanut butter, 3 tablespoons of milk and 2 cups of confectioners sugar). The peanut butter frosting gave the perfect color for the buns and for added realism. I topped off the bun with sesame seeds.
The patty part of the cake was frosted with chocolate frosting and covered with crushed chocolate cookies. The tomatoes, lettuce and cheese were fondant.
The buns were yellow cake and the patty was chocolate cake. So when you cut into the cake the inside matched the outside and looked even more real.
I served the cake in front of a Spongebob display I made out of foam and felt with his pineapple house in the background made out of cardboard and colored with crayons.