TIP: White cashew nut paste
Cashew nut butter is usually light brown in color, but for this recipe, you want to use white cashew nut butter so that it doesn't have the same brown color as the whipped coffee and you can see the different layers clearly. Can't find white cashew nut butter? Make your own (see recipe below). Or use pistachio butter, which has a beautiful light green color and a deliciously sweet taste.
Tip: make your own cashew nut butter
Blend the (soaked) unsalted nuts into a smooth paste in a powerful blender. Scrape the nuts down from the sides of the blender bowl as you go. You can add some coconut oil if you like, which will make it easier to blend. This takes about 10 minutes (stop occasionally to prevent the blender motor from overheating).
