Roasted mushroom soup is a delicious and flavorful recipe that brings out the natural earthy flavors of mushrooms. This soup is made by roasting a mixture of mushrooms, such as portobello, oyster, and porcini, along with onions and garlic until they are caramelized and golden brown. The roasted mushrooms are then simmered in a vegetable or chicken broth until tender and flavorful. The soup is often seasoned with herbs like thyme or rosemary and can be finished off with a drizzle of truffle oil for an extra touch of luxury. Roasted mushroom soup is a great way to enjoy the deep, rich flavors of mushrooms and is a perfect starter for any meal.