That's what my family says so far.  We unloaded another load of landscaping dirt tonight.  The girls thought that called for dessert and knew exactly which one would be best.  "The Cook's Illustrated recipe?" I asked.  "No! Alannah's are the best, Mom," they replied.  So we asked Alannah for her recipe.  She says, "Oh, it's in the Cook's Illustrated cookbook." 

Boom. 

I helped brown the butter and confirm the doubled measurements and they did all the rest, which is my favorite.  Turned out as perfectly crunch-chewy as they hoped.  The boys are probably downstairs snooping through freezer and pantry for the extras we hid as we speak.