While spending several hours on Pinterest the other day, I stumbled upon a super cool recipe for making your own butter. It uses only 1 ingredient, heavy cream. All you need is full fat (YIKES) heavy cream preferably that is not ultra-pasteurized and then you shake. That's it. Check out Cooking with Kids for the full instructions. Sounds like a fun project for the kiddos, not so sure I could eat full fat butter as I do like to fit in my jeans but it would be a fun experiment! Let us know if you've tried it!