Beef-Chipotle Chili

Ingredients

• 1/4 cup flour
• 1 teaspoon salt
• 1/2 teaspoon freshly ground pepper
• 3 pounds boneless beef chuck trimmed of excess fat and cut into chunks
• 6 tablespoons olive oil
• 1 1/2 teaspoons dried oregano
• 4 garlic cloves minced
• 2 red onions finely chopped
• 2 cups beef broth
• 7 ounces chipotle chilies in adobo sauce