Instructions

1. Line a square baking tin with parchment or baking paper. In a large mixing bowl, cream your butter and sugars using an electric mixer for about 3-4 minutes or until the mixture is pale and creamy. Add your vanilla and beat again. Then sift in your flour and stir with a wooden spoon or plastic spatula. Add the milk, one tablespoon at a time, until a soft dough forms. Then stir in chocolate chips.
2. When you are ready to assemble your chocolate bar, melt your chocolate in the microwave, stirring every 30 seconds, until just melted. Pour a small amount of chocolate into your prepared tin, spread it out using a small spatula, until the bottom is just covered. Then, grab a small handful of the cookie dough, flatten it out with your hands, until it’s about 1/2 inch thick, and gently pop it on top of the melted chocolate. Continue with the rest of the cookie dough, until there are almost no gaps – but it’s ok if there are some!
3. Pour over the remaining chocolate until the entire bar is covered. Break up the chocolate chip cookies with your hands and place them on top. Then sprinkle over a few chocolate chips. Pop into the fridge for 1-2 hours to set before cutting into slices.