Christmas butter biscuits

Preheat oven to 180°C.

Line 2 baking trays with baking paper.

Using an electric mixer, beat butter, sugar and vanilla in a small bowl until pale and creamy.

Add egg and mix until well combined.

Sift flour and baking powder over butter mixture.

Add milk and stir until just combined.

Using 2 teaspoons of dough at a time, roll dough into balls.

Place on baking trays.

Using a lightly-floured fork, flatten biscuits slightly (allow room for spreading).

Bake for 12 to 15 minutes, swapping trays over in oven after 10 minutes, or until light golden.

Allow to cool on trays for 5 minutes.

Transfer to wire racks to cool completely. Drizzle with glace icing and sprinkles.

For the glace icing:

Sift icing sugar into a bowl and gradually add the warm water until the icing becomes thick enough to coat the back of a spoon.

If necessary, add more water (a drop at a time) or icing sugar to adjust the consistency.