Preheat oven to 160°C and line two large baking trays with baking paper
Place the butter and sugar into the bowl of an electric mixer and mix on medium speed for 5 minutes or until pale and creamy. Add the egg and vanilla and beat until well combined. Add the flour and mix on low speed until mixture just comes together and forms a dough. Cover dough in plastic wrap and refrigerate for 15 minutes
Roll the dough between two sheets of baking paper until 3mm thick. Place onto a tray and refrigerate for a further 15 minutes
Remove from the fridge and using a snowflake shape cookie cutter, cut cookies from dough. Carefully transfer to prepared tray and place into the oven for 10 minutes or until just turning golden. Remove from the oven and allow to cool completely on trays. Decorate snowflakes using white icing pen. Allow icing to set before serving
Tips & Hints:
These biscuits can be cut into any shape you like using different cutters. Try stars or love hearts instead!