Doug Nester’s Dill Mayonnaise (From Dean & DeLuca)

This is the most perfect cold dill sauce for fish I have ever tasted. I have -A. to control myself to keep from eating it by the spoonful! It is herby, lemony and tangy with a lovely background of mustard. I tasted it one day, when buying fish at Dean & DeLuca, my favorite neighborhood specialty store (considered by many to be the father of all American specialty stores). It had been created as an accompaniment to their wonderful fresh fish. I was “hooked” immediately, and thr