Barbacoa de Carne al HornoMexican barbacoa is traditionally cooked in a pit, but these days we aren't likely to dig a pit when we can emulate the flavor and tenderness of barbacoa by roasting the meat slowly in a home oven. Beef chuck roast is a good cut for this cooking method. The meat can be shredded for great tacos and burritos, or served in chunks with beans and rice. Don't forget the guacamole and fresh salsa.