Fudgy Cookie Crumble Bars

Preheat the oven to 180ºC/350ºF and grease and line your pan.

Place the flours, baking soda, cocoa powder, cornstarch, and chocolate chips into a medium-sized bowl and stir until combined and the chocolate chips have a good coating of flour on; leave to one side. Place the butter and sugars into a large bowl or the bowl of your stand mixer and beat until light and fluffy, about 2 minutes on medium-high speed. Add in the eggs and vanilla extract and, scraping down the sides as necessary. Mix until well incorporated and smooth, about 1 minute on medium-high speed. Tip in the flour mix and mix on low until a dough forms.

Reserve 1 cup of cookie dough and tip the rest into the 9×9 inch pan. Smooth a little to make sure the whole pan is covered and then sprinkle the chopped fudge bars all over. Crumble the reserved cup of dough on top of the fudge bars and then pour the condensed milk over the whole pan.

Place in the oven for 25-30 minutes until risen, lightly golden around the edges and the centre is almost set. The condensed milk will be slightly browned around the edges and bubbling. Leave to cool completely in the pan before removing and slicing into bars.

Bars are best the day you make them, but will keep in an airtight container in the fridge for up to 2 days.