Pariah

I thought of a "C plot" for a random DS9 episode.

Quark is hunting for a lost recipe of "an old Earth drink" that was "heavily commercialized when Hew-mons knew better/had better business sense"; he may even comment on the logo ("red and white"...alluding to Coca-Cola, perhaps?). The episode would end with him finding the recipe and having Chief O'Brien try a freshly produced quantity of a dark, bubbly liquid; Miles takes a tentative sip while Quark looks on with a large anticipatory smile.

Miles (visibly surprised and a little disappointed): "This...this is root beer."
Quark (his smile rapidly transforms into shock): "What? What are you talking about? I spent a Nagus' ransom of latinum to acquire that list of ingredients! This is an ancient Earth delicacy no one has had in centuries!"
Miles (now lightly smirking): "You may want to get your money back. Oh, it's a bit sweeter than usual, but I'd recognize that flavor anywhere."