Preheat the oven to 180°C fan / 200°C conventional / 400°F / Gas mark 6. Line or grease a baking tray.

Cream the butter and sugar together in a mixing bowl until light and fluffy. You can do this with a wooden spoon or hand mixer.

Add the flour gradually and mix until a soft dough forms. It may look crumbly at first — keep mixing until it comes together.

Fold in the chocolate chips until evenly distributed throughout the dough.

Chill the dough by wrapping it in cling film and placing it in the fridge for 30 minutes.

Divide the dough into 12 equal portions. Roll into balls, place on the baking tray, and gently flatten with your hand or the back of a spoon.

Bake for 10–12 minutes, until the edges are just starting to turn golden. The centres will still be soft but will firm up as they cool.

Cool on the tray for 5 minutes, then transfer to a wire rack to cool completely.