Preheat oven to 300 °F.
Place roast in large nonreactive roasting pan or large baking dish. Sprinkle with Sazonador. Combine tomato sauce, onion, chipotle, 2 tablespoons adobo sauce, vinegar, cumin, oregano, cloves, bouillon and 1 cup water in bowl. Pour around roast. Cover pan tightly with foil.
Bake until metal skewer inserts easily into the center, about 4 hours. Transfer meat to plate to cool. Place cooking liquids in large saucepan. Simmer over medium high heat, stirring occasionally, until thickened and reduced to 1-3/4 cups, about 16 minutes.
Break meat apart; remove any sinew and discard. Shred beef, using fingers or two forks. Add to sauce and simmer heated through. Spoon into tortillas and serve with salsa and toppings.
Beef and sauce can be refrigerated for up to 4 days in advance. Bring to room temperature for easy shredding, or shred before storing. Barbacoa can be stored frozen for up to 4 months.