Beef Tenderloin with Marsala without cocoa stock

4 lbs beef tenderloin peanut oil 3 cloves garlic , mashed into a paste with 1 teaspoon salt 1/4 cup butter 1 onion , finely chopped 2 cloves garlic , minced 3[...]

1 (8 ounce) carton nonfat sour cream 1/4 cup minced fresh Italian parsley 1/4 cup prepared horseradish 1 teaspoon white wine worcestershire sauce 1/8 teaspoon[...]

4 beef tenderloin steaks , cut 1 inch thick (about 6 oz. each) 1/2 cup uncooked lentils 1/2 cup water 2 cups ready-to-serve beef broth , divided 1 teaspoon[...]