Easy 4 Ingredient Chocolate Concrete

5 / 5 (2 reviews)

This is the classic school dinner chocolate concrete. With only 4 ingredients, it's crumbly with the crunch you know and love. A perfect retro treat, especially when topped with pink custard!

By: Wandercooks (via Wandercooks)
Original Publish: Mar 25, 2021
Last Updated: Mar 1, 2026
Prep: 5 mins
Cook: 20 mins
Yields: 8, 8 Squares

Nutrition Facts

450 kcalCalories
6 gProtein
70 gCarbs
18 gFat
Finished Easy 4 Ingredient Chocolate Concrete

Ingredients

Instructions

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Chef's Notes


Ingredient

All Purpose Flour – Good old plain, all purpose flour is perfect for this recipe. Bread flour also works well. Avoid using self raising flour as this will give you a lighter, cake-like result and not the concrete you’re looking for!
Butter – Salted butter works well for this recipe, but you can also swap out for oil or vegan butter.
Sugar – Regular caster sugar or granulated sugar is best. Sub with brown sugar for a deeper flavour and less sweetness.
Cocoa Powder – Use 100% unsweetened cocoa powder. If using a hot chocolate mix or Milo, up the amount to 50g / 1.75oz or around 7 tbsp.


Add extras – pop in a 1/4 cup of raisins or chocolate chips for a sweet twist.For more flavour – Add a teaspoon of vanilla essence into melted butter.
Make it a cake – Add an egg and use self raising flour to transform it into a chocolate cake.Small tins – Use smaller tins (less than 19cm / 8 in) for a chunkier slice.
Storage – Pop in an airtight container and store at room temperature for a few days, or freeze. When ready to eat from frozen, allow to thaw then heat in the microwave for 20-30 seconds to soften.
Hard or soft – If you like soft chocolate concrete, serve it immediately while hot. Otherwise, allow it to cool and harden.

 

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Reviews from the Original Source

Denisa ★ 5.0/5

Perfect recipe! So much nostalgia, just like I remember from school

Liz ★ 5.0/5

First time making chocolate concrete and turned out perfectly! Saving this recipe and website!

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