Add 1 cup pistachios to the bowl of a food processor with the S-blade in place.
Process for 10-12 minutes until you've got pistachio butter. (You may need to scrape down the sides of the bowl a couple times while this processes.)
Once done, combine the yogurt, pistachio butter, blueberries, and remaining 1/4 cup pistachios in a large bowl.
Refrigerate for 1 hour before serving. Will keep in refrigerator for up to 5 days in a sealed container.
*If you are using pistachios that have been salted, I would use dried blueberries instead of fresh blueberries.The nutrition facts presented here are estimates only. The brands you use and product types chosen can change the nutritional information presented. To obtain the most accurate nutritional information, you should calculate the nutritional information with the actual ingredients you use.