Place the butter in the bowl of an electric mixer

Turn the mixer to a low speed and add the sugar.

Once the mix if light and fluffy, add the egg.

Now add the flour and baking powder and mix until a dough forms.

Cling wrap the dough and place in the fridge for 20 minutes or so.

Line two flat trays with baking paper and preheat the oven to 180 degrees Celcius.

Take tablespoons full of the dough and roll into a ball and place on a tray.

Dip your thumb into flour and make a dent in each dough ball.

Fill the hole with the marmalade.

Bake the biscuits for 15 minutes or until slightly brown and cooked through.