If you want a cookies that makes you want to close your eyes, chew slowly and say “mmmmmmmmmm” for a really long time, go to Levain Bakery in Manhattan, and order one of their Chocolate Chip Walnut cookies. Unless you’re this [very disturbing] guy, one will be enough.
If you don’t happen to live in New York City, or would perhaps like to make such a cookie at home, then take a gander at My Brother’s Interpretation of these taste-bud-gasmic cookies. And do rate it highly, won’t you?
And, if reading his instructions and making them for yourself just isn’t enough, you can watch him prepare them – in 3 different shirts – over at Veoh.