If you are wondering why the powdered sugar, the first attempt at this recipe I used granulated sugar and there was a faint grittiness, so I thought either try out superfine sugar or powdered sugar. But since the vast majority of us don’t keep superfine sugar on hand (I usually just make mine in the food processor) I decided to go with the powdered sugar and it worked wonderfully. I think the cornstarch in the powdered sugar even offers a little chew to this perfectly peanut buttery cookie. After making four of these already I know this is going to be my new obsession. You may just find it to be yours too! Enjoy!
