I love liver and onions but you tell somebody that and you might as well tell them you like munching on scat.
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I loves me some liver, but usually it's chicken-liver on a skewer, at a yakitori place.
I dunno how much it qualifies as "gross" but I love me a Monte Cristo. Deep-fried ham-and-cheese French Toast sandwich, sprinkled with powdered sugar and dipped in currant jelly. Om nom nom nom.
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I love a monte cristo as well; these are pretty common at Vie de France, though they're not very good here. I had my first one at the Pirates of the Caribbean restaurant in the attraction at Disneyland. It was love at first bite.
Elvis apparently liked to do peanut-butter-and-banana sandwiches, monte cristo style.

post-thread-finishing
edit: OH, crap! Blue Bayou, that's the place! Man, those are good, huh?