From Manifold Destiny, by Chris Maynard and Bill Scheller.
Distance: 250 miles
This is about as fancy as you dare get in the down-home Midwest, but it's okay if the pork tenderloin is from a native Iowa hog. The long cooking time will let you put a lot of prairie miles behind you. Just set the cruise control, line up your hood ornament with a distant landmark like the Nebraska state capitol, and set a timer to wake you up when dinner is ready.
At home or on the road, blend the mustard, wine, onion, and seasonings. Spread the split surface of the tenderloin with the mixture and press lightly together, then wrap with foil.
Find a medium-hot spot on the engine and turn once during cooking. Total cooking time should be about 4 1/2 hours.
Amy Thielen, author of The New Midwestern Table and host of Heartland Table, says when it comes to freshwater fish, “the lack of a crust opens up a world of flavor possibilities.”