I picked this up at a local wal-mart.
I tried one of the pieces in small bites and yes it sure did have what was supposed to be Cookie Dough filling in it.
My main problem here is the cookie dough tastes too much like the the cookie you already get here with the Twix to begin with so it ruined it a bit for me.
The Snickerdoodle one I recently tried was the much better flavor as that had something extra going on you can fully taste.
A minor thumbs up from me on this item.