Sautéing The Mushrooms: Start by sautéing sliced mushrooms in butter until they turn golden brown. This step releases their rich umami flavor.
Adding Aromatics: Introduce finely chopped onions and garlic to the mushrooms. Allow them to soften and release their aromatic goodness.
Creating The Roux: Sprinkle flour over the mushroom mixture to create a roux. This will serve as the thickening agent for the soup.
Incorporating Liquids: Gradually pour in the chicken or vegetable broth, stirring continuously to avoid lumps. Add the dry white wine for an extra layer of flavor.
Simmering Perfection: Let the soup simmer gently, allowing the flavors to meld together beautifully. Toss in fresh thyme leaves for a fragrant herbal note.
Creamy Indulgence: Pour in the half-and-half or heavy cream, infusing the soup with a luxurious creaminess that’s quintessentially Ina Garten.
Seasoning Sensation: Season the soup with salt and pepper, adjusting the flavors to your liking.
Blending To Smoothness: For a velvety texture, carefully blend the soup until it reaches a consistent smoothness.