These Italian pistachio cookies are soft, chewy, and full of pistachio flavor. Made with just five ingredients, they're naturally gluten-free and easy to make! Perfect for your Christmas cookie tray or as an afternoon treat with espresso.
Place to pistachios in a food processor and pulse until they are finely ground into flour.
In a large bowl combine pistachio and almond flours. Add powdered sugar, eggs and zest(if using) and stir until fully combined.
Using a generous tablespoonful per cookie shape dough into a crescent and roll in additional powdered sugar to dust. Place on a baking sheet lined with parchment paper at least an inch apart.
Bake for 15 minutes and cool for at least 10 minutes before serving.