Rare Roast Beef Sandwich with Fresh Tarragon-Horseradish Butter

1. Mix butter with fresh tarragon and horseradish. Season to taste with salt.

2. Spread butter onto 4 slices of pumpernickel bread. Arrange roast beef over 4 unbuttered, bottom slices of bread. Sprinkle with salt. Spread a thin layer of the sliced radishes on top of the beef. Place a buttered slice of bread on top of the radish slices.

3. Cut crusts off sandwiches and cut in half lengthwise.

Makes 8 servings.