Heat oven to 425°F.

Pierce all sides of meat using a meat fork every 1 inch and place in a large resealable plastic bag.

Purée blackberries in a blender or food processor. Press through a sieve to remove seeds. Discard solids. Combine blackberry purée, Cabernet, garlic, rosemary, thyme, sage, salt and black pepper in a small bowl. Pour mixture over roast and seal bag. Refrigerate 4 hours or overnight, turning roast occasionally.

Drain meat from marinade. Sprinkle cracked pepper mélange evenly over meat and place in a large roasting pan. Pour 1 cup marinade from plastic bag into roasting pan. Discard remaining marinade. Roast 15 minutes, reduce oven to 350°F Continue to roast 50 minutes or until meat thermometer reads 145°F for medium rare. Remove meat from roasting pan. Let stand 5 minutes before slicing thinly across the grain.

Purée 1/2 cup blackberries in a blender or food processor. Press through a sieve to remove seeds. Discard solids. Using a wooden spoon, loosen and dissolve any browned bits in roasting pan. Stir in blackberry puree, beef broth, cornstarch and Cabernet. Place roasting pan over medium heat. Bring to a boil stirring constantly. Cook 1 minute or until slightly thickened. Stir in remaining blackberries. Season with salt and pepper.

Garnish platter with rosemary, thyme and blackberries.