ChatterBank2 mins ago
chocolate concrete recipe
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"This recipe for Chocolate Concrete was given to me years ago by the school dinner supervisor.
10 and a half oz S.R.flour
8 and threequarters oz margarine[hard]
8 and threequarter oz white sugar
1 oz cocoa
Melt the marg. and add dry ingredients. Add the egg. Press into a greased shallow tin. Brush with water and sprinkle with sugar.
Gas mark 1. Electric 275 deg.F for 20 mins. Circa. 1951. "
She got the recipe they use from one of the cooks. The original recipe unfortunately is for 100 so you will need to break it down but it is as follows:
For 100 people
5lb 4oz (84 ounces) self raising flour
4lb (64 ounces) margerine
3lb (48 ounces) sugar
5oz Coco Powder
1. Mix Flour, Sugar & Coco Powder together
2. Melt Margerine but don't let it boil, only melt
3. Pour into flour, sugar, coco you've already mixed well
4. Add Eggs slowly until you get the right consistency
In an attempt to break it down for 10 people I calculated the following ratios:
8.4 ounces self raising flour
6.4 ounces margerine
4.8 ounces sugar
0.5 ounces Coco Powder
1 Egg or Less
You will need to experiment with cooking time, I didn't get that piece of information.
I would love to know if this works for anybody and what cooking temperature they end up using.
Hope this helps,