Grandpa Chuck's Roast Chili

Ingredients

• 1 tablespoon vegetable oil, plus more, to taste
• 3 pounds beef chuck, boneless, trimmed and cut into 1/2-inch pieces
• black pepper, to taste
• 1 1/2 cups onions, chopped
• 4 cloves garlic, minced
• 1 tablespoon cumin
• 1 1/2 teaspoons ground ancho chili pepper
• 3 cups low-sodium beef broth
• 1 (14.5-ounce) can diced tomatoes
• 1 cup tortilla chips, crushed
• 2 canned chipotle peppers in adobo sauce, finely chopped
• 2 tablespoons tomato paste
• salt, to taste
• sour cream, to taste
• cheddar cheese, to taste, shredded
• fresh jalapeños, to taste, sliced
• fresh cilantro, to taste, chopped