Winston Churchill, Nazis, and the (almost) exploding chocolate bar

by K.B. Owen

With Valentine’s Day still on our minds, we thought you might enjoy this post about an exploding chocolate bar.

photo by John Loo (creative commons)

The year was 1943, and those crafty Nazis had come up with another plan to assassinate Winston Churchill.  They decided to prey upon the Prime Minister’s fondness for expensive chocolate, and began work on a bomb hidden in a pound-slab bar of Peter’s Chocolate.

photo via (cc)

How it was supposed to work:

The exploding chocolate bar was made of steel, with a thin layer of real chocolate covering it.  Inside was the explosive, with a 7-second delay mechanism.  I’ll quote the rest of the description, as detailed by Lord Rothschild, head of counter-espionage at MI5:

When you break off a piece of chocolate at one end in the normal way, a piece of canvas is revealed stuck in the middle of the piece  which has been broken off and sticking in the remainder of the slab.  When the piece of chocolate is pulled sharply, the canvas is also pulled and this initiates the mechanism.

The bar was wrapped in shiny, expensive foil, and labeled “Peter’s Chocolate.”  The plan was to take the chocolate into the war cabinet dining room, and so take out as many cabinet members as possible, along with Churchill.

As you may have guessed, the plot was unsuccessful.  British agents, working undercover in Germany, alerted MI5 about the plot, and included a rough sketch of the bars they had seen.

Since there was concern that the exploding chocolate bars may actually reach the British public, Lord Rothschild wrote a secret letter to artist Laurence Fish, asking him to draw a better picture of what such a bar might look like. (Fish’s widow just recently discovered this letter, part of which is quoted above, and donated it to the country’s collection of other war-time documents).  Check out The Huffington Post’s article, which includes a photo of Rothschild’s letter.

There’s also an interesting looking sketch (via Photobucket) you may want to check out, which I can’t post here for copyright reasons. I haven’t been able to establish if this is Fish’s drawing, or someone else’s, but it looks really cool!

Want to read more? Check out these other sources:

Mystery Fanfare: Death by Chocolate: Winston Churchill.


Sometimes real life is crazier than fiction, right?  What do you think of the plot – did they really have a chance to pull it off?  I’d love to hear from you!

Until next time,


K.B. Owen signing books at Prospero’s Books (Manassas, VA)

K.B. Owen taught college English for nearly two decades at universities in Connecticut and Washington, DC, and holds a doctorate in 19th century British literature.

A mystery lover ever since she can remember, she drew upon her teaching experiences in creating her amateur sleuth, Professor Concordia Wells…and from that series came lady Pinkerton Penelope Hamilton.

There are now six books in the Concordia Wells mystery series thus far, and three novellas in the Penelope Hamilton series.

We blog here at misterio press about twice a month, usually on Tuesdays. Sometimes we talk about serious topics, and sometimes we just have some fun.

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  • Reply
    Kassandra Lamb
    February 19, 2019 at 12:28 pm

    Hmm, I will be examining chocolate bars carefully before breaking them apart in the future. You’ve got to give the Nazis kudos for creativity though!

    • Reply
      K.B. Owen
      February 19, 2019 at 1:36 pm

      Almost feels like Wyle E. Coyote and Road Runner, though, doesn’t it? *wink*

      • Reply
        Kassandra Lamb
        February 20, 2019 at 10:26 am

        Yup. LOL

  • Reply
    Shannon Esposito
    February 20, 2019 at 11:15 am

    Yeah, I’ll give them points for creativity, too but then take them back for weaponizing chocolate! That’s like sacrilege. 🙂 People are truly crazy.

    • Reply
      Kassandra Lamb
      February 21, 2019 at 1:11 pm

      Good point, Shannon!

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