Member recipe

Chocolate Concrete Cake

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(13 ratings)

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Cooking time

Prep: 10 minutes Cook: 45 minutes

Skill level



20 squares of cakey goodness

Reminisce over the nostalgia of your primary school years with this crunchy chocolate treat!

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  • 160g Butter/Margerine
  • 175g Granulated Sugar
  • 225g Self-Raising Flour
  • 25g Cocoa Powder
  • 1 Egg


  1. Pre-heat oven to gas mark 3 / 170C

  2. Melt the butter, add the sugar and mix well.

  3. Add the flour and cocoa and mix well until you have a stiff consistency.

  4. Beat the egg and gently mix into the flour mixture.

  5. Put the mixture into a greased 30cm x 18cm baking tray, and gently press into the corners and flatten into the tin.

  6. Sprinkle with a little water and place in the top half of the oven for 45 minutes.

  7. Then remove from oven and sprinkle with sugar. Allow to cool for 5 mins then cut into required size pieces and place on a wire tray.

  8. You can either eat it as it is, or make some custard to go with it for dessert.

Comments, questions and tips

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Linda Cole's picture
Linda Cole
26th Jul, 2020
It was nice enough but not crunchy like I remember it from school.
Jessica Turbett's picture
Jessica Turbett
21st Jul, 2020
I dont understand everyone saying this is a sponge recipe. This is the only recipe I've ever used. Never had a problem with it ... maybe it's you that's the problem not the recipe.
Rochelle Elise's picture
Rochelle Elise
19th May, 2020
Is tasty, however more sponge like than concrete, I think it requires no egg and probably plain flour.
3rd Apr, 2020
This is a sponge recipe and not at all chocolate concrete. This recipe calls for self-raising flour but I'm wondering if it is meant to be plain flour like other chocolate concrete recipes.
17th May, 2020
We had the same problem followed the recipe exact
Chade Fallstar's picture
Chade Fallstar
10th Dec, 2019
Just like the dinner ladies used to make. They don't get this at my kids school anymore, so I made it for them to try, they loved it. So did I.
Nadine Santwris's picture
Nadine Santwris
16th Sep, 2019
Omg this is so easy and lovely
12th Aug, 2019
I absolutely hate all kinds of cooking/baking, but this recipe is so easy and always turns out well, even for me. And it does take me back to my school days especially when i do chocolate custard to go with it. Definitely recommend it
14th Aug, 2018
I make this recipe often and it's delicious. Sometimes I make it with Juvela gluten free white mix and it turns out just as lovely, just a little more crumbly. The kids love it!
3rd Dec, 2017
Utterly fantastic. Excellent recipe that worked a treat. Very nostalgic. Great taste.


Charlton Smith
24th Sep, 2019
Is there anyway of making this less crunchy?
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