This Thermomix recipe for mushroom and barley soup is a hearty and nutritious dish that is perfect for colder days. The Thermomix helps to cook the barley to perfection while also blending the mushrooms into a creamy texture. This soup is made with a combination of button mushrooms, cremini mushrooms, and porcini mushrooms. The mushrooms are sautéed with onions, garlic, and thyme to enhance their flavors. Vegetable broth and cooked barley are added to create a satisfying and filling soup. Garnish the soup with fresh parsley and a sprinkle of grated Parmesan cheese.