340g/12oz unrefined sugar
570ml/1 pint water
40 coffee beans
180g/6oz cocoa powder
pinch of salt
60g/2oz of the best quality bitter chocolate you can find
Place the sugar in a pan over a medium heat. Brush the sides of the pan with a pastry brush dipped in a mug of cold water. Continue this process until the sugar caramelises. (You will probably end up using a third of the water).
Add the rest of the water, coffee beans, cocoa powder, salt and chocolate.
Bring to the boil.
Pass through a very fine sieve and allow to cool.