Preheat oven to 350 degrees
In a food processor, pulse pistachios with 1/2 the sugar until pistachios are coarsely ground, but not too fine.
Transfer to large bowl and add remaining sugar, almond flour, almond extract, and lemon zest. Whisk to combine.
Add egg white and honey. Mix well until the mixture holds it's shape, when pressed together.
Prepare baking sheet by lining it with parchment paper.
Sift powdered sugar into a medium size bowl.
Take a small amount of the cookie dough and roll it into a ball. Then roll it in the powdered sugar, shake some off, and then put on the baking sheet.
Complete above step until all cookies are on the baking sheet(s) approx 2" apart.
Flatten cookie balls using a spoon.
Bake for 12-15 minutes or until they are a light golden brown on the bottom.
Allow to cool before serving.
Enjoy!