Rub the butter and the flour between your fingers until they look like breadcrumbs.

Add the sugar and chocolate chips and mix them up evenly using your hands.

Beat an egg in a separate bowl and add to the mixture.

Mix well with a fork.

Squeeze the mixture into one ball.

Grease a baking tray using some butter.

Pre-heat oven to 200°C/400°F/Gas Mark 6.

Form the ball into around 8-12 rocky heaps of mixture.

Put into the oven and bake for 15 Minutes.

Enjoy!