This Reuben replaces the traditional corned beef with a beet, tempeh, and seitan mix. The "brine" taste gets mimicked by pickling spices and apple cider vinegar. Russian Dressing is a must on any good Reuben and the recipe below makes the perfect dairy free version. It tastes straight up like the sauce on a Big Mac. The final touches of this sandwich are a fresh sour dough bread, high quality sauerkraut, and vegan cheese to bind the sandwich together.