We love these. An easy muffin to make and tasty. Not low fat of course, with the peanut butter, but no added fat (other then the peanut butter and egg). Easy to pack for on the go snacks! These totally smell like peanut butter cookies when they bake. I modified this out of a little muffin cookbook I got in a mom's club gift exchange over 5 years ago. I have old (and small) muffin tins so I got 12 regular muffings and 9 minis. But I think most people would get 12 regular.