I know there has been some mentions of PB2 which is something like Jif or skippy minus the fat in powdered form. Well being the cautious girl I am with added sugars, I decided to search for similar products. From a disaster preparedness site, I found powdered peanut butter. It is 33 calories for 1 tbsp. It is pretty good stuff which I have been adding to my protein shakes.
I know there are other similar products such as peanut flour. I got a huge container for around $20 which seems like it will last a year. (I love my peanut butter but not the calories) Unfortunately, my husband is a peanut butter fiend so maybe it won't last a year