Briefly sweat garlic cloves, onion and spring onion in coconut oil, dust with flour and fill up with 1 l broth and the coconut milk.
Add 1 tsp turmeric, sea salt, pepper, nutmeg, lemon zest and simmer for 20 minutes. Puree with a hand blender, pass through a sieve and season again.
Froth up with the hand blender and serve the soup with fresh spring onion rings.