Grilled Rump Picanha with Chimichurri Sauce
1 (1 1/2 – 2 pounds) Black Angus Beef Picanha steak 1/2 cup chopped flat leaf Italian parsley 1/2 cup chopped coriander 1/2 onion finely diced 3-4 cloves garlic, minced 1 teaspoon dried oregano 1/2 teaspoon crushed red chilli flakes 1/2…