Combine in a blender water, protein powder, pudding, splenda and peanut butter. Process until smooth. Drop in 6-8 ice cubes and process until smooth again. It gets kinda thick. You can sip on this all day!
I put it in one of those cups that have the liquid in it that freezes to keep drinks cold. It started to freeze to the sides and was just like a decadent chocolate ice cream!