Step 1

Using an electric mixer, beat butter, sugar and vanilla for 5 minutes or until light and fluffy. Add egg. Beat until combined.

Step 2

Sift flour and custard powder over butter mixture. Using a wooden spoon, stir to combine. Divide dough in half. Press each half into a disc. Wrap in plastic wrap. Refrigerate for 15 minutes.

Step 3

Roll each disc out between 2 sheets of baking paper until 5mm thick.

Step 4

Cut into shapes and bake at 180C/160C fan-forced for 10-12 minutes.