Maggie don't be afraid to give cuitlacoche a try. It tastes kind of like a smoky mushroom. It is indeed considered a delicacy in Mexico and I had it several times when I used to travel there on business. I also had a couple of other Aztec delicacies, such as escamoles which are basically ant eggs, and fried maguey worms . The ant eggs and worms didn't taste too bad (we made tacos out of them) but that evening I became violently ill, so I don't think I'd eat them again. I did not try fried or chocolate covered grasshoppers, which are also available in Mexico.