*All cream cheese or all mascarpone can be substituted for the combination of both.
** Dates would also be great in this, especially Medjools or Honeyballs (Bahri dates). In fact, that's what I'll be trying next time. Raisins can also be substituted, golden or dark.
*** The original Green Apple Ice recipe calls for ¾ cup of simple syrup, but I felt that was a tad too sweet, and the ice didn't need that much. If you prefer it sweeter, use ¾ cup. If using store-bought apple juice, reduce to ¼ cup sugar plus ¼ cup water for syrup.
UPDATE. 2014: Add the coconut cream from a cold can of coconut milk, or just ½ cup coconut milk to the Green Apple Ice mixture, prior to freezing, if you want it creamier.
Also, you can freeze the apple mixture overnight into a solid block, then scrape it to make it a Green Apple Granita, if desired.