I used kale, but feel free to use any leafy green you like, such as spinach, collard greens, Swiss chard, etc. Same with the basil: replace it with another herb, such as cilantro or parsley. (But don't be tempted to put in more than a small handful of parsley. Raw parsley, when it's blended or processed, it has a very strong flavor.) You can also make it with sunflower seeds, or nuts, such as cashews, hazelnuts, macadamias, or pine nuts – but before you add them to the food processor, soak them in water for 10 minutes up 24 hours.