Place a bain marie over boiling water. Add the butter, chocolate and sugar to the bowl. Melt together.
Once the choc butter mix has melted, whisk with a hand mixer
Continue to whisk while slowly and steadily adding the whisked eggs making sure they don't scramble from the heat of the choc mix Add the vanilla extract
Fold in the flour
fold in the nuts
pour into buttered baking dish and bake for 25 - 30 min
These are best eaten on the day. They freeze well too and also enjoy a 20 sec burst in the mircowave to bring out the flavour of the chocolate.
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