Ingredients170gms of plain chocolate 115gms of margarine or butter 225gms of soft brown sugar 1table spoon of vanilla essence 2 eggs 170g of plain flour  100gms of chocolate chipsHow to prepare the brownie Pre-heat the oven to 180°C or 350F and grease the tin.Break the chocolate into pieces and place in a small heat proof bowl.Melt the plain chocolate in the bowl over a pan of boiling water.   Put the margarine/butter and sugar together in a large bowl and thoroughly  mix it with cream.Stir in the melted chocolate and vanilla essence.Break the eggs into a bowl and beat them using a fork.Add the eggs to the large bowl containing butter/ sugar/ cream and stir. Add the flour and chocolate chips to the large bowl and stir Pour the mixture into a baking tin.Bake in the oven for 20 - 25 minutes.  Remove from the oven and turn out onto a cooling rack and leave to cool.Cut into pieces and serve.