Sorry about the overly long title.
I’ve written before that I have a thing about really good hot chocolate. I prefer a potent pokey hot chocolate rather than a long, watered down poor-man’s version of one. This base is absolutely brilliant, it takes not very long to make, you store it in the fridge, it lasts for a week (unless you use cream that’s right by its sell by date) and you can turn it, in minutes, into superb hot chocolate or add it to shop bought custard (buy good quality one) to make chocolate custard that’s just really IMPRESSIVE.
The proportions below are a rough guide. Stick loosely to them, because I’ve perfected this over years. But of course it doesn’t matter if you have only 90g of one chocolate or 60g of another, or a bit more or less cream. The effects of varying the proportions are, indeed, something you can play around with. This is what works for us.
100g 70% cocoa chocolate
75g 37% cocoa milk chocolate (I use Green and Black’s milk cooking chocolate)
225g of cream, I use double but you could use single
In a bain marie or a bowl over pan of boiling water, melt the two types of chocolate with the cream. Be careful not to let it get too hot or scorch. Then just put it in a suitable container and put it in the fridge until you need it.
To make hot chocolate you just measure out some milk into the cup you are using – for a normal size cup of mug you use 3/4 of the cup of milk and a big dessert-spoon dollop of chocolate ganache, all into a pan, warm through until melted/warm. Drink and sigh.
To make chocolate custard get shop bought custard – I use this one from Waitrose which is 500g and I add the whole quantity of the custard ganache the recipe above makes. This makes a good old amount of chocolate custard, but of course you can vary it to make as much as you want, or you may prefer the custard less chocolately. Experiment. It goes super well with my chocolate sponge.
Later note: a dollop of this ganache, mixed up with cold milk, also makes a divine chocolate milk drink.