Beat butter and icing together until soft. Add ground almonds and mix well. Add flour and mix with a spatula until a smooth dough forms.
4
Roll dough out to a thickness of 1 cm. Cut out shapes using your preferred pastry cookies cutter and place them on a baking tray lined with parchment paper.
5
Bake for 20-25 minutes. Remove from heat and cool on a wire rack.
6
Dust cooled polvorones with icing sugar. Serve or store in an airtight container to keep them crisp.