Yes, we recommend using the KSB4027 blender with tamper for making nut butters.
Add your choice of nut to the blender using no less than 3 cups of nuts, to cover the blades. Secure the lid and remove the center cap, and insert the tamper. Using a high speed, blend for 30 to 60 seconds, using the tamper to guide the nuts into the blades, until the desired consistency is reached.