Pre-heat the oven to 160C (320F) fan-forced and grease or line two baking trays with baking paper.

In the bowl of an electric mixer, beat the butter and sugar together until they're light and creamy.

Add the egg and nutella and beat them in.

Take the bowl off the stand and sift in the flour and baking powder and then tip in the chocolate chips and gently stir it all together so there are no dry parts.

Using a little less than tablespoon of dough at a time, roll the dough into balls and place them on the trays leaving a couple of centimeters between each one.

Gently press the top of each ball down with the back of a fork.

Bake the biscuits for 12-15 minutes.

Leave the cookies to rest on the trays for 5 minutes and then transfer to a wire rack to cool completely.