Circuit Board Birthday Cake

I was inspired by the circuit board designs on this site, and made this cake for my fiance’s birthday. He builds high-end audio as a hobby, and I based the design of the cake on a circuit board that he recently designed (seen in the picture in front of the cake).

I baked several sheet pans of sponge cake, and cut out six rectangular pieces to cover the bottom and sides of a rectangular spring form cake pan (these formed the “walls” of the cake). I filled the pan with chocolate/raspberry mousse, and placed a piece of sponge cake on top to close the cake.

After letting the cake set overnight, I brushed the cake with strained apricot jam and covered the cake with a thin layer of marzipan. I then brushed the marzipan with gin, and covered it with green-colored sugar paste. I modeled the various electronic components out of colored sugar paste, and attached them to the sugar paste using royal icing. Lines were piped with colored royal icing, and the wires on both sides were licorice.

8 thoughts on “Circuit Board Birthday Cake”

  1. This is the coolest cake I have seen on here! I am going to try to make one for my husband’s bday coming up.
    Thank your for putting this up.

  2. Natasja, if your Fiance didn’t appreciate it, would you Marry me? Awesome!!

    -From an Electronics Engineer in Las Vegas, NV

  3. Im going to do this amazing cake for my boyfriend next week!
    He is going to love it!!
    Thank you for share with us.

  4. Going to make something like this for my husband’s 80th as he is always building circuit boards. thanks for sharing.

  5. I’m going to make a similar cake for my son’s graduation party..He’s going to college for electrical engineering!Thanks for the ideas!

  6. I just did a cake for my husband’s birthday and used the binary number system for his age. I just did a sheet cake and frosted it. I melted tootsie rolls in a variety of colors and flavors to form differing shapes. I did a transistor and used chocolate bars for the main tag. I also placed jelly beans on the trace lines for amplifiers and diodes. It turned out pretty nice. He took the picture of the cake to work to show the other electronic engineers. They all loved it. Thanks to this site for all the great ideas.

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