Cake Fairy Tales

Life's better with cake and a sprinkle of fairy dust

Iron Man Arc Reactor Cake

A last-minute request for a small Iron Man cake for a little boy who’s a big fan and the ensuing Google search turned up this link on Cake Central. How cool would it be to have a working arc reactor in the middle of the cake, right? For the uninitiated, an arc reactor is an uber-cool electromagnetic device that Iron Man installed in his chest to keep a piece of bomb shrapnel embedded dangerously close to his heart from moving.

Tony Stark made it seem like such a piece of cake, ha-ha, when he put that arc reactor in his chest, but I couldn’t find any instructions or tutorial on the web on how to put lights in a cake.  Some bloggers suggested LED lights, like fairy lights, so I was at the hardware shop looking for anything suitable when the lady recommended a disposable torchlight. It was the perfect size, about 1.5 inch in diameter and and cost a mere dollar.


I made sure to wrap the torchlight loosely with a couple of layers of food-grade plastic wrap before inserting the torchlight, so the cake wouldn’t come into contact with the torchlight but the switch could still be maneuvered under the plastic.


When the lights are out, the “arc reactor” looked awesome, plus it cast a really pretty ring of light on the ceiling. I hope this cake made one little boy’s fifth birthday very unforgettable.

6 comments on “Iron Man Arc Reactor Cake

  1. andmorefood
    October 21, 2013

    I would bet it’d make some grown man very happy too!

  2. Janine
    October 21, 2013

    All I can say is wow, that looks amazing! That cake would probably make any man/boy squeal with excitement!

    • danayong
      October 21, 2013

      Thanks for all the nice comments. Now you guys make me want to make a 3D Iron Man with the torchlight embedded in the torso. Now THAT would make a grown man weep!

  3. Carolyn Morse
    February 27, 2017

    Congratulations on an awesome job! The cake looks amazing! Can I ask you what a “torchlight” is? Do you have a link to one that I could by I’ve tried searching online and can’t find one. I’d love to try a similar cake for my son’s upcoming 4th birthday. Thanks so much! 🙂

    • Carolyn Morse
      February 27, 2017

      Sorry for the duplicate post, I forgot to check “notify me of new comments” in my last post. Hope that you still check this blog! 🙂

    • Cake Fairy
      March 12, 2017

      Hi Carolyn! Sorry for the late reply. A torchlight is a portable LED lamp that uses disposable batteries. I get mine from shops that sell tools or even stationery.

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This entry was posted on October 20, 2013 by in Cakes and tagged , , .

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© Dana Yong and Out Of The Cake Box, [2014]. Unauthorized use and/or duplication of this material (including photographs) without express and written permission from this blog's author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Out Of The Cake Box with appropriate and specific direction to the original content.

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