Step by step

coconut milk, mushrooms, onions, water, salt

Clean you mushrooms well without letting them get waterlogged. What's more, consider that mushrooms release some water while cooking so, be careful while adding water to your soup.
The coconut milk is a quite common ingredient in Asian cookery. Do you know the origin of coconut milk? The coconut milk that you can buy at the supermarket in tins or bricks, is produced by drying and pressing the grated coconut white kernel. So, don't confuse it with coconut water!