To make the buns I used yellow cake mix in two round 9" pans. I put more in one than in the other. The one with the most was for the top bun. I cut all around the top bun to trim the edges and saved the extra to make the fries by cutting it into strips and placing under broil for about a minute.
To ice the buns I used caramel icing. It's the perfect color. For the sesame seeds I mixed a couple of scoops of white icing with the left over caramel to lighten it up a bit, then used a piping bag with a very small hole to draw them on.
For the hamburger I used a little more than half of a chocolate cake mix in a 9" pan then iced it with chocolate frosting and stuck cookie crumbs around it to give a burger look.
I finished up by putting some cheese on the burger and ketchup on the burger and fries. The only thing I wish I had done differently was ice the cake pieces separately and then assemble the burger.
I do not have much to add to the wonderful tips that I already found on your website, except for 2 things:
1) I found a delicious recipe for caramel icing on the Domino Confectioners Sugar package that was just the right color for the hamburger bun. Here's the recipe...2/3 cup butter, 1 cup brown sugar, 1/2 cup milk, 4 cups powdered sugar, 1 tsp vanilla...melt butter in saucepan, add sugar and milk, heat to boiling stirring constantly for 5 min, cool 10 min, beat in confectioners sugar. I found it a bit thick so I added 3 tablespoons of water.
2) I used slivered almonds for the sesame seeds on the bun.
I used a Greek cake recipe to make the "buns" and added cocoa to the same recipe for the "hamburger". Here's the recipe...3 eggs, 2 cups sugar, 1 cup warm milk, 1 cup olive oil, 2 1/4 cups flour, 3 tsp baking powder, 1 tsp vanilla (add 3/4 cup cocoa for the chocolate cake). Mix together eggs; add warm milk, olive oil, and vanilla; add dry ingredients and bake 350 degrees until done. Enjoy!
This cake was created for a Burger Bash event to celebrate the birthday of the Burger Beast; a blogger who rates hamburgers and other foods primarily in South Florida.
About the cake; it is composed of 7 chocolate and vanilla layers of 16" circles! The top bun is 3 layers, burger and bottom bun are 2 layers each. Each section is frosted with vanilla buttercream, filled with chocolate fudge buttercream, and covered with rolled fondant; then the "condiments" added as the burger was built.
I used chocolate fondant for the burger and tinted white vanilla fondant a buttery color for the buns. I then used Wilton orange color mist to give it a golden look and used a tear-drop cutter for the sesame seeds. The lettuce, tomato, pickles, cheese, ketchup, and mayo are all tinted fondant.
This homemade giant hamburger birthday cake was so heavy I delivered it in 2 pieces adding the top bun at the very end and praying that it would be structurally sound and not collapse! The burger and the event were a great success :)
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