Chocolate-Peanut Butter Green Smoothie

This is for you Markey~

My 4 year old was getting a little whiney about having to drink his green smoothie, and wasn't finishing his up. Then I tried this smoothie from pg. 65 of the Green Smoothie Girl's Big Book of Smoothies (first that I have tried so far) I think that his whole, totally filled to the top glass was literally INHALED within a minute.

anyway, this is how I made it:

12-16 oz of filtered fridge water
2 bananas- frozen & chunked
2 scoops of peanut butter
several BIG handfuls of spinach
a small dash of agave nectar
1 scoop of chocolate powder- I don't know what it's called, but I got it from the self serve bins at good earth

the "real" recipe:

8 oz. water
1 banana
1 large handful of spinach
1 scoop chocolate protien powder
1 tsp peanut butter
2 ice cubes

They are basically the same... I doubled mine because it was for more than one serving. Also- I am a little leary of protien powder. Not sure why?