The beef is cooked sous-vide to lock in moisture, marinated overnight in the brand's proprietary peppers and spices, braised slowly at a low temperature until tender, and then shredded by hand. An average serving of Chipotle barbacoa contains 170 calories, 7 grams of fat, 530 milligrams of sodium, 2 grams of carbs, 1 gram of fiber, and 24 grams of protein.