I have noticed “green” juice all over the place and have needed to attempt it.   We just lately discovered our blender had a juicer attachment and have put it to excellent use.  It has been entertaining making fresh juice recipe at residence.  The most recent was a large hit.  My 4 12 months old daughter drank a big glass and requested much more.
Fresh kale, challenging ribs eliminated
Wash and cut your fruit.  I leave the peel on the apple.  Juice.  Enjoy!