Over a year ago, I shared a recipe for squash lemon drop cookies. I had a lot of interest, but no one could believe that they tasted that good and had squash in them. SQUASH! So I went back and made greek yogurt lemon drop cookies and substituted the squash out for greek yogurt. Just to trick the kids and several of their taste tasting friends who were over I mixed the two recipes up one day and served them both to them and the kids never complained once. In fact, I was a little ticked they didn't leave any for me!
Greek yogurt is a great substitute just make sure that you choose a variety that doesn't have a lot of sugar. We were shocked when we saw how much sugar some greek yogurts add.
Also, there is an unwritten rule in my house that if you come over and want a snack, you never know what you'll be subjected to. For some reason the kids still come over. And still ask what we have to eat.
I love all those bits of lemon zest. I need a cookie, stat.