Preheat the oven to 180°C.
Mix together the ground almonds and the icing sugar. Add the egg whites then the Amaretto and mix to form a ball.
Roll out into a long 'sausage', cut in to small pieces and place on a baking tray.
Bake in a preheated oven for 15 to 20 minutes.
«These can be made in advance and kept for a few days.»
Delicious and delicate biscuits made with Amaretto (almond liqueur), a perfect accompaniment to coffee.