Name: Peppercorn Beef Tenderloin Crostini
Ingredients: 1 cup sour cream; 3 Tablespoons Dijon mustard; 3 Tablespoons prepared horseradish; 6 Tablespoons peppercorns (you can use mixed or just black); 1 Tablespoon kosher salt; 3 Tablespoons Dijon mustard; 2 Tablespoons butter (unsalted, at room temperature); 1 cup parsley (finely chopped); 1-2 pound piece of beef tenderloin; 2 cups arugula; 2 loaves of french bread