Preheat:

Preheat oven to 180°C fan-forced or 200°C conventional. Line two baking trays with baking paper.

Blend:

Place butter into a large mixing bowl. Using an electric mixer, beat on high speed for 3 – 4 minutes or until pale and thick. Add custard powder and icing sugar and mix on low speed until combined. Add flour and baking powder and mix until just combined. Divide dough into 20 pieces (approx. 1 tbsp each) and place onto baking trays. Using lightly floured hands, roll each piece into a ball. Press down lightly with a fork.

Bake:

Bake for 10 – 12* minutes or until biscuits are a light golden colour.

Allow biscuits to cool for 5 minutes on tray before transferring to a wire rack to cool completely.

*Time may vary depending on oven.

Decorate:

Place butter into a large mixing bowl. Using an electric mixer, beat on high speed for 2 – 3 minutes or until pale. Add custard powder and icing sugar. Mix until combined into a thick icing.

Spread or pipe icing onto the bottom of one biscuit. Sandwich with a second biscuit to form pairs. Lightly dust with icing sugar before serving.