Mushroom soup is a staple recipe when it comes to soup recipes. So this is my take on it. Everyone has their own way of cooking it & it's those simple differences that make it more interesting.
Melt the butter in a casserole pan. Add the leeks to the pan & season them with salt, pepper, curry & garlic powder. Cook for 5 minutes over medium heat, stirring occasionally.
Add the mushrooms & potatoes to the pan. Stir well together. Add the coconut milk & vegetable stock to the pan. Bring to boil & then let simmer for 45 minutes.