In a large pot, heat the oil and sauté the onion with the potato and carrots for about two minutes. Then add the washed and well-drained lentils and sauté for another minute. Add hot water and let the pot simmer on low heat until the potato, carrots, and lentils are cooked.

Using a hand blender, blend the mixture until smooth and creamy. Add salt, and the soup is ready. Before serving, heat it slightly, stir well, and serve hot with croutons, sumac, lemon, and cumin (as desired) 👌🏻👌🏻🔝🔝