Some essential ingredients for a road trip: good tunes, to peel back the miles; a phone charger, of course; and, if this road trip is in south Louisiana, a good old fashioned ice chest, for souvenirs of the edible variety. A drive around these parts will not bring you sweeping views of mountains and valleys. But it will bring you close to wonders of the Louisiana food world, namely boudin, the rice and pork sausage link that can be a snack on the way or the whole purpose of the trip.