A fluffernutter, all grown up. This peanut butter cookie is packed with Reese's Pieces, and filled with crunchy peanut butter (the good kind that's just peanuts) and a thick square of homemade vanilla bean marshmallow. The marshmallow is made from scratch and whipped with real vanilla bean, so it actually tastes like something instead of just sweet. It stays soft and stretchy against the salt and crunch of the peanut butter, while the Reese's Pieces crack through every bite
