Take butter, brown sugar, sugar and vanilla in a bowl and whisk well. Now add in egg and beat till creamy.

Mix milk and red food colour in a bowl and set aside.

Now add in cocoa, salt. baking soda and mix well.

Add in the mixed red food colour and mix well. Add in chocolate chips and mix well.

Add in the flour and mix well.

Now cover the bowl with plastic wrap and chill for 1 hour.

Now line a baking pan with parchment paper and preheat oven to 180 degree C / 350 degree F.

Now take a tblspn of the mixture and roll it into ball. Arrange it in the baking pan leave spaces between them.

Now pop it in oven and bake for 10 to 11 mins.

Once the cookies is baked, remove it from oven and flatten it slightly. Now top with few chocolate chips if needed while the cookies is still hot.

Now cool it down for 10 mins.

Remove it from pan and cool it completely on a cooling rack.

Serve,