1 tablespoon cumin seeds
4 bacon slices, chopped
1 4-pound boneless chuck roast, trimmed, cut into 1/2- to 3/4-inch cubes
1 large onion, chopped (about 2 cups)
4 large garlic cloves, chopped
3 1/2 cups (or more) beef broth, divided
1/4 cup pure ancho chile powder*
1/4 cup Texas-style chili powder blend (such as Gebhardt)
1 tablespoon mole paste**
2 teaspoons (or more) salt
2 teaspoons apple cider vinegar
1 1/2 teaspoons dried oregano, crumbled
1 to 2 tablespoons masa (corn tortilla mix)***
1/4 teaspoon cayenne pepper (optional)
Warm, freshly cooked or drained canned black beans or pinto beans
Chopped white, red, or green onions
Grated cheddar cheese, Monterey Jack cheese, or queso fresco
Sliced fresh or pickled jalapeño chiles
Tortilla chips or oyster crackers