Mix Thousand Island dressing and Creole mustard well. Lay all slices out. Spread Thousand Island mixture on 1 side of all slices of bread. In layers, beginning with corn beef, place - beef, Swiss, Sauerkraut. Place second piece coated side down on top to finish. Place in a little butter or pan spray fresh toast style until both sides are golden brown.
Caramelize onions and apple, add cabbage all at one time. (Dutch Oven or Large Pot). Add water and all other ingredients. Bring to boil. Reduce to medium for 1-2 hours. Keep an eye on your water level (should be no less than 1/4 full). Add salt and pepper to taste.