Start by spreading salted butter on one side of rye bread. Use 2 slices per sandwich.
Heat a medium sized frying pan or grill to medium heat. Place the buttered side of the bread down flat against the pan and add a slice of Swiss cheese on top of one of two slices per sandwich. Cook until golden brown. This should take about 2-3 minutes.
Remove from heat and spread the thousand island dressing on top of the melted cheese. 1 tbsp of dressing is normally a good amount. Pile on a handful of shredded or thinly sliced corned beef followed by ¼ cup of sauerkraut. Top with another grilled slice of rye bread.
Slice the sandwich down the center with a knife to create 2 halves. This make for easier handling.
Enjoy!