How to make cashew butter: Making cashew butter is a simple process. Start by roasting raw cashews in an oven until they turn golden brown. Let them cool, then transfer to a food processor or blender. Blend the cashews on high speed, stopping occasionally to scrape down the sides. After a few minutes, the cashews will turn into a creamy butter consistency. Add a pinch of salt or sweetener, if desired, for flavor enhancement. Transfer the cashew butter to a jar or container, and store it in the refrigerator.