01 - Butter one side of each slice of rye bread evenly.
02 - Heat a large skillet or griddle over medium heat until hot.
03 - Place 2 slices of bread, buttered side down, in the heated skillet.
04 - Layer each bread slice with half the corned beef, 2 slices Swiss cheese, and half the drained sauerkraut.
05 - Spread 1 tablespoon of dressing on the unbuttered side of remaining bread slices and place on top, dressing side down.
06 - Grill for 2–3 minutes per side, pressing gently with a spatula, until bread is golden brown and cheese is melted.
07 - Remove from pan, slice each sandwich in half diagonally, and serve immediately while hot.