Start by measuring out 2 cups of pistachios. If you prefer a more intense flavor, consider using roasted pistachios.
Place the pistachios in your food processor. Pulse them for about 30 seconds to break them down into smaller pieces.
After the initial pulsing, stop the food processor and use a spatula to scrape down the sides.
Resume processing the pistachios for several more minutes until the mixture is smooth and creamy.
Once your pistachio butter is smooth, you can add a pinch of salt, ground cardamom, cinnamon, or any sweetener you desire.
Taste your pistachio butter and adjust the flavor as needed.
Transfer the pistachio butter into a glass jar or airtight container and store it in the refrigerator.