• 3/4 cup mayonnaise
• 1 1/2 tbsp. dijon mustard
• 1 tbsp. whole grain mustard
• 1/2 tbsp. prepared horseradish
• 2 tbsp. sour cream
• Kosher salt to taste
• 1 (12 oz / 340 g) can Roast Beef and Broth, drained
• 4 slices Bread of choice
• Arugula
• Salt and Pepper

Prepare horseradish sauce. Wisk together the first six ingredients. Makes 1 cup. Make Sandwich. Grill bread slices if desired. Spread 2 bread slices with desired amount of horseradish sauce and 2 bread slices with butter. Fill with beef and arugula and sprinkle with salt and pepper. Store remaining sauce in refrigerator. Allow to come to room temperature before using.