01 - Spread softened butter evenly on one side of each rye bread slice.
02 - Spread 1 tablespoon Russian dressing on the unbuttered side of two bread slices.
03 - Arrange corned beef, drained sauerkraut, and Swiss cheese evenly over the dressing.
04 - Top with remaining bread slices, buttered side facing outward.
05 - Preheat a skillet or griddle over medium heat.
06 - Cook for 2 to 3 minutes per side, applying gentle pressure, until bread turns golden brown and cheese melts completely.
07 - Remove from heat, cut each sandwich diagonally in half, and serve immediately.