Step 1

Preheat oven to 425°F and line a baking sheet with parchment paper.

Step 2

In a food processor, pulse pistachios, mint, cilantro, dill, and parsley until finely ground. Add remaining ingredients and pulse until coarsely ground, scraping down sides of bowl and reprocessing as needed to make sure everything is evenly combined.

Step 3

Using your hands, form mixture into 20 balls and transfer to prepared baking sheet. Bake until lightly browned on bottoms,  15 to 18 minutes.

Step 4

Meanwhile, combine all sauce ingredients, except water, in a blender. Blend, adding water 1 tablespoon at a time, until smooth. Serve falafel with tahini sauce on the side.