Propeller Seeds from the Maple Tree

I went to a permaculture pot luck meal the other night and ran into an old friend who now works for the health dept and is interested in teaching people about available food that is right outside their door.  I always liked that guy :-).  Guess what I learned from him?  You can eat those cool propeller seeds from the maple tree.  You just peel the outside off the nice little seed and pop it into your mouth.  Some taste just like a fresh pea, others, a little bitter.  After a little research on the internet it seems that many use as a trail snack but others boil or roast them.  I think I want to try them cooked.  I will let you know how they taste.  The ones I tried were already dry looking but the seed inside was plump and green.