All you need is Full Fat Unsweetened Coconut
and a reliable blender
Homemade Coconut Butter: Take your shredded coconut and simply blended it in your blender for about 3-5 minutes. (Note: If you use a food processor, blend for 10-ish minutes.) That's all there is to it!
Side note: Depending on where you live--and the temperature/altitude--you might have trouble with this recipe. It works perfectly for me, just a little patience. Coconut butter is very temperamental and reacts oddly in different climates. So please know before trying that there's a chance this recipe might not work for you. Also, if it refuses to turn to butter for you, it might be worth a shot to add some coconut oil to the blender... sometimes that fixes things right up!
These instructions are provided by Chocolate Covered Kate's Blog. She has a FAQ page to guide you along.