Something about the way Marshall says, "and then . . . a pickle," rang a bell in my mind. It reminded me of that scene in Amadeus, the one where Salieri is describing the genius of Mozart, particularly in the Gran Partita: "and then . . . an oboe." So I found it on YouTube:
Amazing, no? Marshall's hamburger soliloquy is an homage to Salieri's in Amadeus!!! If you listen very closely to the scene in HIMYM, you can even hear the Gran Partita in the background :) I am pretty impressed with the creators of HIMYM that they were able to insert "high culture" into this scene in such a sly way! And I love everything involved: the Gran Partita, hamburgers, the oboe, pickles, HIMYM, Amadeus, and of course, Mozart.