3. 'The One Where Ross Got High' (Season 6)
The plot: Ross and Monica's parents, Jack (Elliott Gould) and Judy (Christina Pickles), come to Thanksgiving for the first time. Chandler is trying to charm the 'rents, who don't like him because Ross once blamed him for being a pothead to avoid getting in trouble himself. It all escalates to an all-out airing of dirty laundry between Monica and Ross.
Random side-plot: Rachel attempts to make a traditional English trifle, but mixes up the recipe with a shepherd's pie. Joey asks everyone to pretend it's delicious so he can leave for another party.
The food: The glorious trifle -- ladyfingers, jam, custard, raspberries, more ladyfingers, beef sauteed with peas and onions, a little more custard, bananas, then whipped cream.
Best quote: The whole exchange between Monica and Ross is amazing, but let's give the honors to Mrs. Geller for wrapping it up in style:
"That's a lot of information to get in thirty seconds. All right, Joey, if you wanna leave, just leave. Rachel, no, you weren't supposed to put beef in the trifle. It did not taste good. Phoebe, I'm sorry, but I think Jacques Cousteau is dead. Monica, why you felt you had to hide the fact that you had an important relationship is beyond me." -- Judy