360g (12 1/2 oz) Bournville plain chocolate (2 x 180g packets), broken into pieces
225g (8oz) butter, cubed, plus extra for greasing
225g (8oz) light muscovado sugar
4 eggs, beaten
75g (3oz) self-raising flour
1 tsp vanilla extract
75g (3oz) chocolate chips
Instructions
1
Preheat the oven to 180°C/160°C Fan/Gas 4. Grease and line a 30 x 23cm (12 x 9in) traybake tin with non-stick baking paper.
2
Place the chocolate and butter in a large heatproof bowl. Place the bowl over a pan of simmering water until melted. Stir to combine.
3
Remove from the heat and add the sugar and eggs. Mix well until smooth, then add the flour and vanilla and mix again. Stir in the chocolate chips.
4
Pour the chocolate mixture into the prepared tin and bake for about 45 minutes, until well risen and set around the edges, with a slightly soft centre.
5
Leave to cool in the tin, then slice into 24 squares.
With 120 all-new recipes, Mary’s Foolproof Dinners has everything you need to make delicious, fuss-free meals – whatever the occasion, Mary’s got you covered.