Butter one side of bread slices. Combine mayonnaise and horseradish. Place a layer of corned beef on bread; spread with about 1 tsp mayonnaise mixture. Top with one apple slice and then cheese. Bake at 450F about 2 minutes or until cheese melts.
Makes 16 servings.
*Cut slices diagonally in half, if desired.
Cajun Country -- New Iberia, Louisiana