This recipe has served me well for years, these are gorgeous, and incredibly easy to make.
So here it is:-
250g Plain dark good quality chocolate
250g unsalted butter
5 medium eggs
75g Plain Flour
Butter and flour six 175ml moulds.
Melt the chocolate and butter together, then remove from the heat. Meanwhile, whisk the eggs, and sugar (it doesn't have to be a sabayon but they do have to be well mixed).
Pour the melted chocolate into the eggs and whisk until very smooth. Then whisk in the flour, making sure there are no lumps, pour into the prepared moulds and bake in the oven pre-heated to 200C/400F/Gas 6 for about 10 minutes.
These taste best, served with Ice-Cream.
There is also a recipe for a chocolate sauce to drizzle over the fondants, I don't always make this
but I'll add it as well.
Melt 150g plain dark chocolate in a bain marie (or very carefully in a microwave). place 100ml milk, 25ml double cream and 25g butter in a pan and, over a low heat, gently bring to the boil. Remove the milk mixture from the heat and pour over the melted chocolate. Whisk until smooth and silky. Leave in a warm place.