Method:

1. In a 3-quart stockpot or other medium-sized soup pot, heat the sesame oil over medium heat. Once the oil is hot, add the onion, garlic, and ginger. Cook, stirring often, until the chopped onion is translucent, about 6 minutes.

2. Stirring constantly, add the water or broth, lentils, cumin, coriander, turmeric, cardamom, cinnamon, cayenne pepper, and salt. Bring to a low boil, then turn down the heat to low, cover and let the soup simmer for about 20 minutes, or until lentils are very tender.

3. Stir in the tomato paste until well combined. Cook several minutes more, or until the soup is at the desired temperature and consistency, adding more water to the dahl if needed.

4. Garnish with yogurt if desired. Serve hot and enjoy.