Preheat oven to 325°F and line a tray with parchment paper.
In a small bowl, mix pistachio powder, coconut oil, powdered sugar, egg, vanilla, almond extract, and coconut milk until smooth.
Add almond flour, tapioca flour, baking soda, and salt. Stir until a thick dough forms. It will be fairly sticky— this helps it spread. If it’s too sticky to handle add one more tbsp coconut flour.
Roll into a big ball and coat in powdered sugar.
bake for 10–12 minutes, until edges are set and top is crackled.
Let cool 5–10 minutes before eating — it sets as it cools!