I found this lovely recipe for Chocolate Brownie Cake on BBC Good Food - a great website for recipes. As it is the school holidays I had help from my two helpful sons, while I oversaw the whole debacle from the sidelines.
I have to say that it looks pretty disgusting before you put it in the tin, but tastes divine. I have given you the link to the original recipe (here) - the only change I would make is to bake it for 30-35 minutes. I know that you need the contrast between the crunch of the exterior and gooey inside, but no one wants semi raw brownie cake.
As you can imagine the cake went down a treat and Albert has had a request for this for his birthday in a couple of weeks.
Love Mrs Jones x