) I use them for this recipe. It makes a lovely moist cake and is particularly nice when it is still slightly warm and the chocolate is slightly melted Ingredients
450g SR flour
1 level tsp baking powder
325g soft brown sugar
175g softened butter
3 large eggs
1 tsp vanilla extract
6 ripe bananas (riper the better, they can be black!)
6-8 tbsp milk
200g bar of good quality plain chocolate
Method
Measure flour, baking powder, sugar, butter, eggs, vanilla extract and bananas into a bowl and use a potato masher to squash the mixture all together, mixing it well.
Add enough milk to make a dropping consistency. Cut each of the chocolate squares into 4 - 6 pieces (the easiest way to do this is unwrap the bar on a chopping board, cut along the grooves then keeping it all in place, cut each square into quarters). Stir the chocolate pieces into the mixture.
I line a tin with Bake-O-Glide (because it makes life so much easier when it comes to turning the cake out) then pour the mixture in the tin.
Cook at the centre of a preheated oven for about 45 mins (190 deg C, 375 deg F, Gas Mark 5)
AGA: cook on 3rd set of runners in Baking Oven for aprox 45 Mins
Allow to cool in tin for aprox 20 mins before turning out to cool completely
)
) It was a lovely cake but I know would have been better with the right amount used. So if your scales are in ounces, make sure you do your conversions properly. Of course, If I had my wits about me, I would have looked at the pack, where it shows the weight in grams. 
