Chilli and Chocolate Brownie Easter Cake

So its really just chocolate brownie...but in cake format with some added chilli! But chocolate brownies are always moister than a standard chocolate cake so it makes sense to make it in cake form, slather it with icing too - and piling on some mini eggs makes it a bit 'Easter-ish'.

200g chocolate
180g margarine
320g brown sugar
120g self raising flour
20g cocoa powder
1tbsp vanilla essence
3 medium size eggs
chilli oil

Melt the chocolate, then add the margarine and continue to heat until it's all melted. 
Mix in the sugar, then add the vanilla essence.
Add the flour and cocoa powder and mix
Add the eggs one at a time until the mixture is glossy and smooth, then add chilli oil to taste (just a slight hint of it is enough)
Put it into two 8inch baking tins
Cook for about 30 minutes at gas mark 3 - don't overcook as the edges go too hard - chocolate brownie is meant to be a bit gooey in the middle.

When the cake has cooled, sandwich the layers together with chocolate icing and then cover the top and side (I used a mix of margarine, cream cheese, icing sugar, cocoa powder and vanilla essence)