i love this recipe sooo much but i cant find it anywhere. i used to have it at school with hot custard, ummmmm it was lovly. please help me
umm abdillah 
Hey I googled and found this, is this what you were looking for? I have never heard of it. Sounds interesting tho. Let me know if this is it.
j
Chocolate Concrete Cake, the popular name for Chocolate Crunch, is a traditional British school dinner favourite. It is also sometimes called Rocky Road. The earliest references to this appear in early 1950s school catering recipe manuals.
Although hard margarine was used in schools, I would use butter instead for a superior flavour. There are also some versions of this recipe where the quantity of both the fat and the sugar is increased to 10 oz (280g) together with the addition of a beaten egg. Having tried both versions, I prefer the simpler mixture as this is what I was treated to at boarding school – I imagine it all depends on which school you attended and your recollections of what you enjoyed at the time.
8 oz (225g) hard margarine or butter
1 tsp vanilla extract
12 oz (350g) self-raising flour
1 oz (25g) cocoa, sifted
8 oz (225g) caster sugar
a little extra caster sugar for dusting before and after baking
Melt the margarine or butter in a pan on the simmering plate. Sift the flour and cocoa into a bowl and stir in the sugar. When the fat is just melted, stir in the vanilla and add to the dry ingredients, with the beaten egg if using. Mix thoroughly and turn into two 8 inch (20cm) greased and lined square tins. Wet the top of the mixture with a little cold water and sprinkle with caster sugar.
2 oven Aga
Roasting oven
Bake on a grid shelf on the floor of the oven with a cold plain shelf on the second set of runners above. Cook for 20 minutes, then transfer to the simmering oven for a further 20 minutes.
3 and 4 oven Aga
Baking oven
Bake on a grid shelf on the third set of runners for 25-30 minutes.
Conventional cookers, including Rayburn
Bake in the centre of an oven set at Gas Mark 4, 180°C, 350°F for 25 minutes.
Once cooled, sprinkle with a little further caster sugar before serving.
Squares of Chocolate Concrete Cake were traditionally served with cold peppermint custard, usually coloured pale green or pink. This was usually made from blancmange, with oil or peppermint added to taste, plus a little food colouring. Packets of instant blancmange are available today which are easy to prepare and give the authentic consistency, alternatively use thick custard made with 2 oz (55g) each of custard powder and granulated sugar to a pint (600ml) of milk, made in the normal way. Flavour with peppermint and colour once made
Hi everyone, I do not know what aga means, I just wanted to help the person who asked if anyone had this recipe. I googled and found it on a website. They have aga listed, I am assuming its some kind of oven temp for a country other than US. But below is what we would use in the US. If someone wants to know what aga means, maybe you can find it online?
j
I think Aga is a type of stove or brand, based on radient heat. I’ve seen the temps in European cookbooks as cool, warm, hot, etc. 2 being cool, but around 300F. I think Google is a good idea for anyone wanting to make this recipe or just for the knowledge.
JoanieCooks
You are correct. An Aga is a cast iron stove which would have originally been fueled by wood or coal but nowadays it is oil, electric or gas. They can have many ovens with different temperatures (The Waltons used one)