Print Recipe From Bunny Whitlaw Print Recipe Prime Rib Tenderloin Courses: Main Course Ingredients Servings Beef Tenderloin 1 cup sour cream (8 oz) 4 Tablespoons prepared horseradish 1 teaspoon coarsely ground pepper ½ teaspoon Worcestershire sauce Instructions Season and let marinate overnight OR season & freeze. Thaw when ready to use. Cook at 500 degrees uncovered for 15 minutes. DO NOT OPEN OVEN DOOR. Let set in oven for 2 hours. Recipe Card powered by Mexican Lasagna 30 mins Previous Roast Leg of Lamb Next Leave a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name* Email* Website Save my name, email, and website in this browser for the next time I comment.