I found this on the Domino Sugar brand website. Boy what a great muffin recipe. I looked on this site and most did not use this amount of peanut butter. I think you could exchange the creamy peanut butter for crunchy but I end up using chopped roasted peanuts too so that is accounted for in this recipe. If you want to skip that step then just use crunchy peanut butter. They suggested a glaze of chocolate icing but I find that is too sweet and we like these as more of a snack and not a dessert. Hope you enjoy.