Easy Lentil Soup

Ingredients (11)

• 10 cups reduced-sodium beef broth
• 1 pound dried lentils,
• 4 large carrots,
• 1 large onion,
• 2 large celery stalks,
• 2 bay leaves
• One 14.5-ounce can diced tomatoes (with juice)
• 1 tablespoon red wine vinegar
• freshly ground black pepper
• 1 to 2 cups hot water
• chopped chives,