*I was making cookies with some friends, and they had never seen someone grease their cookie sheet like I do. It's what my mom did, and honestly, I thought everyone did. Once you unwrap your butter to use in your baking, don't throw the wrapper away! You wipe your wrapper (butter side down) onto your cookie sheet. There is usually always enough butter remnants left to grease at least two cookie sheets. You can save your non stick spray for another time... plus it tastes a lot better than your non stick spray.
**Also, recently I made these and only had 1/2 c. of canned pumpkin in my fridge, and I went ahead and used that not even having a full cup and they turned out just fine!