*Nuts: I used all walnuts, which are tasty but slightly bitter. For the sweetest and smoothest results, I recommend using cashews, though almonds and even sunflower seeds should work well too. When using walnuts, 4 ounces was a generous cup, or a scant 1-1/4 cups. For cashews, you will be looking at a little less than 1 cup since it is a denser nut.