Peel and finely dice the onion, garlic and ginger. Peel the carrots and cut into small pieces.
Melt the butter in a large saucepan and sauté the vegetables briefly in it. Deglaze with the hot vegetable stock and simmer everything for 20 minutes on a low heat. Then let the soup cool down briefly and puree it finely. Add coconut milk and milk and add the spices. Season the whole thing with salt and pepper and bring to the boil again briefly.
Meanwhile, whip the cream. Pour soup into prepared soup plates and serve with a whipped cream top. That makes 8-10 plates and I usually serve the soup as a starter before an Asian main course.