Anyway - you can find Nigella's recipe here I used the same quantities of ingredients with the exception of the nuts, I substituted them for some Cadbury's Buttons.
I also melted the chocolate and the butter in a bowl over a pan of boiling water, rather than directly using a pan - that's mostly because I didn't bother to properly read my recipe book and just assumed you'd do it that way to avoid the chocolate burning!
I added the buttons at the end, hoping they may sink into the mixture - but they didn't.
After making them I've decided I'm actually not a fan of these brownies - I found that not using flour made them too squidgy, impossible to cut and very undignified to eat. I'm not sure if the chopped nuts may make the mixture stand up to being cut and eaten better?
Have you made these brownies before?