Wash and soak green lentils in lukewarm water for an hour
Put a medium-size pot over heat and fry the chopped onion and garlic together in it
Then add the turmeric, ground angelica, salt, pepper and flour, saute for 3 minutes
Add tomato paste and stir for 3 minutes
Add the soaked lentils and water to the pot
Stir gently, and bring the soup to boil
Then cover the pot and let the Adasi to simmer for an hour
Adjust seasoning and garnish the lentil soup with the crispy onion, chili flakes and olive oil