The quest for the perfect peanut butter cookie

Years ago I made some fantastic peanut butter cookies. They were everything a peanut butter cookie should be, crumbly, peanutty and delicious. I would love to make them again but I have no idea where the recipe came from!
So now I'm on a quest to find the perfect recipe, these cookies from Serious Eats are my first attempt.Unfortunately these aren't 'The cookies', don't get me wrong they are really good but these are soft and chewy, not crumbly like the cookies I remember. So the quest continues...