10 years have passed since I had the best cookie in my life (https://eatlikeushi.posthaven.com/levain-bakery-new-york-city-10-2011). Although I'm far from a cookie specialist, I was keen to get in the queue on a hot 30C sunny day to see if my memories were correct. And they certainly were. Still crunchy on the outside and a hot, moist doughy centre.
Other than the chocolate chip walnut legendary ones, we also tried the dark chocolate chocolate chip and the dark chocolate peanut butter chip. Both of the latters were good too with their own elements and molten centre elements. But in the end I think the original is difficult to surpass.