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Chocolate Concrete Cake

Published: Updated:
Quick and easy

80 Reviews

Total Time
Prep Time
Bake Time
Serves 16
Serves 16

About our Chocolate Concrete Cake recipe:

Chocolate concrete or chocolate crunch - whatever you called it during your school days, this retro bake is a true childhood favourite. This treat is delicious served hot, cold or drizzled in retro pink custard. Check out our simple Pink Custard recipe if you choose the latter option, it's a real blast from the past.

Reasons to bake:

⭐Uses just four ingredients

⭐Ready to eat in just over half an hour

⭐Serve as an easy last-minute pudding on colder days

4 ingredients6 steps
  • Egg-Free Recipes
  • Nut Free
  • Vegetarian


  1. Step 1

    Preheat the oven to 180°C (160°C Fan, Gas Mark 4) Grease and line a 23cm square tin with baking paper

  2. Step 2

    Mix together the flour, sugar and cocoa in a bowl

    Hand rubbing together flour and butter
  3. Step 3

    Melt the butter and mix this in with the other ingredients using your fingers until it becomes crumbly

    Ingredients for this step

    • Butter (unsalted) (100g)
  4. Step 4

    Pour the mixture into the tin and using your fingers press it down, ensuring that it fills all of the corners.

    Hand pushing down cake mixture in tin
  5. Step 5

    Bake for 20 minutes

  6. Step 6

    Once removed from the oven finish with a sprinkling of granulated sugar and serve with custard. This cake should have a crumbly biscuity texture. For a real retro feel try our pink custard recipe.

    Hand sprinkling sugar on top of a square cake


    • 200gAllinson's Plain White Flour 
    • 200gSilver spoon granulated sugar 
    • 100gButter (unsalted) 
    • 50gCocoa powder 


  • Baking paper
  • 23cm/9in square tin

Nutritional information per 29g serving

  • Energy 152cal
  • Fat 5.9g
  • of which Saturates 3.7g
  • Carbohydrates 22g
  • of which Sugars 13g
  • Protein 2g
  • Salt 1g

80 Baker Ratings

Love this recipe so easy and tasty. I always add abit of water too and it makes it like a gooey brownie. The kids love it

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1 baker loved this!

People on here don't seem to understand this is not a cake, it doesn't need eggs and is supposed to be crumbly and on harder and drier side

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