Gluten Free Chocolate Crunch | School Dinner Classic (Chocolate Concrete, Chocolate Brick)

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Perfectly crunchy and wonderfully nostalgic, this gluten free chocolate crunch recipe recreates the classic school dinner favourite. Whether you knew it as chocolate concrete, chocolate brick or chocolate crunch, it's simple to make, can be naturally dairy free with the right spread and perfect served warm with custard, or cold if you don't mind breaking your teeth!

This recipe is...

  • Preparation Time: 5 Mins
  • Cooking Time: 25 Mins
  • This recipe makes 12 pieces

Last updated 1 day ago

Added 16th March 2016

Recipe by Jeanette Wheatley

Gluten free chocolate crunch topped with sugar

If you grew up in the 1990's/early 2000's or maybe even earlier, then you will probably remember the classic school dinners favourites, chocolate crunch being the one main one I remember. You many remember it as a different name, maybe chocolate concrete, or chocolate brick, but whatever the name, it was one of those desserts everyone looked forward to. Crisp on top, slightly crumbly in the middle (or soft and chewy if it was fresh out the oven like I often had the pleasure of sampling most break times) and sprinkled with sugar while still warm, it was even better with a generous helping of pink custard.

These days everyone is obsessed with brownies, blondies and gooey bakes (why is is always a brownie!), but back in the school dinner days chocolate crunch was the chocolate bake everyone wanted. It might not have the fudgy centre of a brownie, but paired with warm custard it's every bit as comforting. If you do fancy something a little softer, you many want to check out my gluten free Nutella brownie recipe or my gluten free gooey caramel brownie recipe.

This gluten free chocolate crunch recipe brings back all that nostalgia while being completely suitable for people with coeliac disease. With just four simple ingredients, it's incredibly easy to make and can also be adapted to be dairy free or vegan by choosing a suitable sunflower spread or other dairy free spread.

Whether you're recreating your favourite childhood dessert or introducing it to a new generation, this gluten free version delivers all the chocolatey crunch without the gluten. Serve it warm with custard, enjoy it cold with a cup of tea or pack a square into a lunchbox for an irresistible sweet treat.

I was lucky to have my mum working in the kitchen of the school I attended so we had the recipe from there that we adapted many years later to make gluten free and regularly make it to keep a stock in the freezer for the coeliacs and none coeliacs in the house! Old School Sponge is also another favourite we love to make that came out of the school kitchen that ended up being made gluten free!

Here are some tips and FAQs about Gluten Free Chocolate Crunch

Yes, I use sunflower spread in this recipe which makes it naturally dairy free, or you could use the likes of dairy free flora.

Yes. Once fully cooled, store in an airtight container and freeze for up to three months. Defrost at room temperature before serving.

It's traditionally served warm with pink custard, though it was always just served on it's own in my school. Vanilla custard, ice cream or even on its own all work beautifully too.

Method

  1. Cream together the sugar and margarine/sunflower spread.

  2. Sieve in the gluten free flour and cocoa powder into the sugar and margarine, then beat well until you get a dough type consistency, you may want to use your hands to pull it all together.

  3. Grease and line a rectangle baking tray and push the mixture into the tin until all evenly covered, the top doesn't need to be flat, using a palette knife to create some ridges in the gluten free dough is great for some texture and little pockets from the sugar sprinkling to sit in.

  4. Bake in an oven preheated to gas mark 6/200c for 25-30 minutes until the top is firm.

  5. Remove from the oven and allow to cool slightly, sprinkle over some granulated sugar and then cut into 12 squares while still in the tin, use a fish slice to help remove it from the tin if you need too. Place the pieces on a cooling rack and allow to go fully cold or serve slightly warm with custard.

Nutritional Information (Per piece)

Cals
208
Carbs
33g
Fibre
1g
Fat
9g
Sugar
18g
Protein
2g

This recipe is featured in

Chocoholics Gluten Free Heaven
Chocoholics Gluten Free Heaven

All sorts of chocolate related gluten free goodness can be found in this collection of blogs and recipes!

Your Comments

I've tried a few recipes where it doesn't harden once left to cool. Does this one harden like wheat chocolate concrete? Thanks
JR26th November 2024
Alison @ Coeliac Sanctuary27th November 2024
Not quite as hard but close. I believe it is the flour type that stops it getting as firm.
Great recipe made for family gathering as my brother in law is Coeliac
Halima9th May 2019
I'm assuming this recipe would work ok with butter instead of spread if diary isn't being avoided?
Gem17th March 2016
Alison @ Coeliac Sanctuary18th March 2016
Yes that would work, we have stated this in the info box at the bottom of the recipe :)

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