This is one seriously indulgent treat. It’s super easy and super quick to make – the longest part is chilling the cookie dough. Make sure you have a blender or food processor handy to blitz it all together.

1. Beat together the butter, sugar and vanilla extract. Mix in 1tbsp milk, and then the flour, salt and chocolate chips. Shove into the fridge for 20 minutes until firm.
2. Roll ¼ of the cookie dough into chickpea sized balls, and put them into the bottom of two drinking glasses.
3. Put the rest of the cookie dough into a blender, along with 500ml milk and the ice cream. Blitz together until the ice cream is incorporated into the milk.
4. Divide the milkshake between the drinking glasses. Serve with a wide drinking straw.