It's been awhile since I've found a Mormon mention, but here's one from the book I just finished, Angels of Destruction by Keith Donohue:

"'We've got problems in this country. Black men in Watts without jobs, poor people living like dogs, Tricky Dick Nixon in disgrace, gas shortages, and Whip Inflation Now buttons, and all you see is the rich man in the country club, the white-shirt crewcut Baptist, the jelly-doughnut-eating Mormons, the cannibalistic Catholics --'" (169-170).

Usually I like to affirm or rebut Mormon myths I find in books, but these lines are uttered by a character who's already a little bit crazy. He's hopped up on the idea of a revolution, crazy with his desire to deconstruct the world - he's not supposed to be making sense. I'm not even sure what "the jelly-doughnut eating Mormons" means exactly. Probably nothing good. Ah well - I did mention the character's crazy, right?