Preheat the oven to 180ºC and grease a couple of baking sheets

Cream the butter, sugar and vanilla extract with a wooden spoon or electric mixer

Add the ground almonds and stir until well combined

Add the flour and salt and mix until it comes together in a soft dough

To form each biscuit, roll a teaspoon of dough into a ball, flatten slightly and form into a crescent shape. These are the traditional kipferln shape, but you can also just roll them into a ball

Place the kipferln or balls on the baking sheets and bake for 15-20 minutes until the tops are lightly coloured

Allow to cool completely

Sift the icing sugar into a shallow bowl and gently roll the biscuits in the icing sugar to coat them evenly

Store in an airtight container or package as gifts

Makes about 40, depending on size