Mulligatawny Spiced Lentil Soup

Rinse the red lentils thoroughly under cold water until the water runs clear; set aside. Heat the vegetable oil or ghee in a large heavy-bottomed pot or Dutch oven over medium heat. Add mustard seeds and allow them to splutter, about 30 seconds. Then add curry leaves and green chili (if using), saute for another 30 seconds until fragrant.

Add the finely chopped onion to the pot and cook until translucent, about 5-7 minutes. Stir in the minced garlic and grated ginger, cooking for an additional minute until fragrant. Add the diced carrots and celery, and cook for 3-4 minutes until they begin to soften slightly.

Stir in the curry powder, turmeric powder, cumin powder, and coriander powder. Cook for 1 minute, stirring constantly to toast the spices and release their aroma. Add the chopped tomatoes and cook until they break down and release their juices, about 3-5 minutes.

Add the rinsed lentils, vegetable or chicken broth, and coconut milk to the pot. Stir well to combine all ingredients. Bring the mixture to a boil, then reduce the heat to low, cover the pot, and let it simmer gently for 20-25 minutes, or until the lentils are completely tender and the soup has thickened to your desired consistency.

Taste the soup and season with salt and black pepper as needed. If you prefer a smoother soup, use an immersion blender to partially blend a portion of the soup, leaving some lentils whole for texture. Stir in the fresh lime juice for a bright, tangy finish.

Ladle the hot Mulligatawny Spiced Lentil Soup into individual bowls. Garnish generously with fresh chopped cilantro. Serve immediately with a side of steamed basmati rice, warm naan bread, or crusty bread for a complete and satisfying Indian meal.