I wish I could take credit for this recipe, but I found it on a food blogger's site, and she said she got it from the Bouchon Bakery in CA. Suffice to say it is THE best peanut butter cookie I have ever had -- and I'm a real connoisseur. Don't faint when you read the ingredients. YES -- it calls for 4 sticks of butter! Just don't tell people that as they moan with delight, enjoying your peanut buttery creations! It'll be our little secret... Notes: I generally eyeball (not measure) the peanut butter, so I probably use more than 2/3 cup. Use crunchy PB if you like; you can also add some chopped up peanuts at the end if you like REALLY crunchy cookies. The original recipe called for these to be peanut butter sandwich cookies (like homemade nutter butters), but I actually think that sandwiching them with peanut butter icing is overkill because they're SO decadent and big already. But I've included that info in case you want to give it a whirl.