Toasted Reubens

In a small bowl, combine the first four ingredients; set askide. Spread mustard on one side of four slices of bread. Layer with the corned beef, cheese, sauerkraut and mayonnaise mixture; top with remaining bread.
In a skillet, melt butter over medium heat. Add sandwiches; cover and cook on both sides until bread is lightly toasted and cheese is melted.

4 servings