Start by preheating the oven to 200C. Spread the carrots in a pan and bake them in the oven with a little olive oil and salt for 20 minutes.
Meanwhile, in a saucepan or wok, heat 1 tbsp. olive oil. Add the onion, ginger and a pinch of salt and cook for 5 minutes. Add the carrots after cooking, the mirin and the broth. Once the broth has boiled, lower the temperature, cover and let everything cook for 25-30 minutes.
In a non-stick pan pour 1 tbsp. olive oil and cook your mushrooms for 5-6 minutes.
Once your vegetables are cooked, put them in the blender or puree them with a hand blender. Add a little water if you think it is needed. Add the rice vinegar. Add the coconut milk and mix.
Put the mushrooms in your soup and serve.