I visited Austin, TX recently and was introduced to their favorite form of street food, dispensed from Airstream Trailers. This particular trailer, Gourdough's, makes doughnuts to order from a menu filled with delights.
You can order doughnuts with maple and bacon, or peanut butter and jelly, like we did, or even get one with fried chicken. It's called a "Motherclucker."
(pardon the red tinge - red umbrella and a sunny day in Texas.)