Soak the cashews in hot water for 2 hours before adding them to your soup.
Start by mixing the cauliflower in a bowl with 2 tbsp. olive oil, salt and spices. Bake at 220 C for 25 minutes. Halfway through the season turn your cauliflower.
In a pot, saute in 1 tbsp. olive oil, onion and garlic for 4-5 minutes. Add the vegetable stock. Throw in the cauliflower too. Once it comes to a boil, lower the temperature and cook for 20 minutes.
Let the soup cool for 5-10 minutes, then pour it into the blender. Add the cashews, lemon and more salt if needed. Beat well.
Enjoy your soup with toasted bread or croutons.