For the brownie layer:
120g good-quality dark chocolate
120g butter
150g caster sugar
2 large eggs, beaten
1 tsp vanilla extract
60g plain flour
1tsp baking powder
For the filling:
450g chocolate chip cookie dough (shop bought is perfect)
2 x 154g pack Oreo cookies
For the glaze:
100g of good quality dark chocolate
30g of butter
50g of icing sugar, sifted
50ml of double cream

1. Preheat oven to 180°C/ 350°F/Gas Mark 4. Line a 22 x 30cm baking tin with baking parchment.

 

2. Place the chocolate and butter in a heatproof bowl and place in microwave for 30 second blasts, stirring after each one until the contents are completely melted.

 

3. With a hand-held electric mixer, whisk the sugar and eggs together for 2-3 minutes until pale and fluffy. Slowly add the melted chocolate and butter then add the vanilla extract and continue to whisk until thickened. Lastly, sift in the flour and baking powder and fold through gently.

 

4. Spread the cookie dough evenly across the base of the prepared baking tin. Arrange a layer of Oreo cookies across the top of the dough and then pour over the brownie batter.

 

5. Smooth the top and then bake in the middle shelf of the oven for 20 minutes until the top is firm and the brownie has come away slightly from the sides of the tin.

 

6. Allow the brownies to cool on a wire rack slightly before removing from the tin to cool completely.

 

7. Prepare the glaze by placing the chocolate and butter in a heatproof bowl and place in the microwave for 30 second blasts as before, stirring until smooth. Whisk in the icing sugar and cream until smooth and set aside.

 

8. Pour the glaze over the brownies and allow to set slightly before slicing.