Creating the perfect Cream of Mushroom Soup is straightforward when you follow these simple steps:

1. Sauté Mushrooms: In a large pot, melt the butter over medium heat. Add the sliced mushrooms and onion. Cook until they are soft and browned, about 8-10 minutes.
2. Add Garlic: Stir in the minced garlic and thyme. Cook for an additional 1-2 minutes until fragrant.
3. Add Flour: Sprinkle the flour over the mushroom mixture, stirring to combine well. Cook for a minute to eliminate the raw flour taste.
4. Pour in Broth: Gradually add the vegetable or chicken broth, stirring continuously to avoid lumps.
5. Simmer: Bring the soup to a simmer. Let it cook for about 15 minutes, stirring occasionally.
6. Add Cream: Stir in the heavy cream and season with salt and pepper. Allow the soup to heat through for about 5 minutes.
7. Blend (optional): For a smoother texture, use an immersion blender to puree the soup to your desired consistency.
8. Garnish: Serve hot, garnished with chopped fresh parsley for a burst of color.

These steps will guide you successfully in crafting this delightful soup, ensuring each bowl is rich and flavorful.